diff --git a/components/agents/AgentGenerationWorkspaceDarkV2.tsx b/components/agents/AgentGenerationWorkspaceDarkV2.tsx
index 396bd7024..88ada89d4 100644
--- a/components/agents/AgentGenerationWorkspaceDarkV2.tsx
+++ b/components/agents/AgentGenerationWorkspaceDarkV2.tsx
@@ -6028,6 +6028,7 @@ export function AgentGenerationWorkspaceDarkV2({
           }}
           sourceImageUrl={psdTemplateDialogSourceUrl}
           brandName={workflowContext?.brand || null}
+          sizeInfoText={workflowContext?.summaryText || null}
           templateMode={psdTemplateDialogMode}
         />
       </ClientErrorBoundary>
diff --git a/components/agents/AgentPsdTemplateEditorDialog.tsx b/components/agents/AgentPsdTemplateEditorDialog.tsx
index 6c47ad86d..16dafcc30 100644
--- a/components/agents/AgentPsdTemplateEditorDialog.tsx
+++ b/components/agents/AgentPsdTemplateEditorDialog.tsx
@@ -564,12 +564,14 @@ export function AgentPsdTemplateEditorDialog({
   onOpenChange,
   sourceImageUrl,
   brandName,
+  sizeInfoText,
   templateMode,
 }: {
   open: boolean;
   onOpenChange: (open: boolean) => void;
   sourceImageUrl: string | null;
   brandName?: string | null;
+  sizeInfoText?: string | null;
   templateMode?: AgentPsdTemplateMode | null;
 }) {
   const normalizedBrandName = String(brandName || "").trim();
@@ -2169,6 +2171,7 @@ export function AgentPsdTemplateEditorDialog({
                   imageAlt="PSD 模板导出结果"
                   imageUrl={renderedResultUrl}
                   key={`${selectedTemplate?.id || "template"}-${renderedResultUrl}`}
+                  sizeInfoText={sizeInfoText}
                 />
               ) : selectedTextLayer ? (
                 <div className="flex min-h-0 flex-1 flex-col rounded-2xl border border-white/10 bg-white/[0.02] p-3.5 xl:p-4">
diff --git a/components/agents/agent-psd-template-export-preview.tsx b/components/agents/agent-psd-template-export-preview.tsx
index 42820d951..309b34912 100644
--- a/components/agents/agent-psd-template-export-preview.tsx
+++ b/components/agents/agent-psd-template-export-preview.tsx
@@ -21,6 +21,7 @@ type AgentPsdTemplateExportPreviewProps = {
   imageAlt?: string;
   enableDimensionAnnotations?: boolean;
   downloadName?: string;
+  sizeInfoText?: string | null;
 };
 
 type ImageSize = {
@@ -86,6 +87,15 @@ const DIMENSION_SUFFIX_REGEX = /-尺寸标注(?=\.)/;
 const DIMENSION_LINE_COLOR = "#666b73";
 const DIMENSION_TEXT_COLOR = "#2a2f35";
 const DIMENSION_TEXT_HALO_COLOR = "rgba(255,255,255,0.92)";
+const SIZE_INFO_LINE_REGEX = /尺寸信息[:：]\s*([^\n]+)/i;
+const NUMBER_REGEX = /\d+(?:\.\d+)?/g;
+
+type AutoDimensionValues = {
+  widthCm?: number;
+  depthCm?: number;
+  heightCm?: number;
+  rawValues: number[];
+};
 
 function clamp(value: number, min: number, max: number) {
   return Math.max(min, Math.min(max, value));
@@ -132,13 +142,145 @@ function getDimensionLength(annotation: DimensionAnnotation) {
   );
 }
 
-function getDimensionLabel(annotation: DimensionAnnotation) {
+function formatDimensionValue(value: number) {
+  return Number.isInteger(value) ? `${value}cm` : `${value.toFixed(1)}cm`;
+}
+
+function extractAutoDimensionValues(
+  sizeInfoText: string | null | undefined
+): AutoDimensionValues | null {
+  const normalizedText = String(sizeInfoText || "").trim();
+  if (!normalizedText) {
+    return null;
+  }
+
+  const matchedLine =
+    normalizedText.match(SIZE_INFO_LINE_REGEX)?.[1] || normalizedText;
+  const values = Array.from(matchedLine.matchAll(NUMBER_REGEX))
+    .map((item) => Number(item[0]))
+    .filter((item) => Number.isFinite(item) && item > 0)
+    .slice(0, 3);
+
+  if (values.length === 0) {
+    return null;
+  }
+
+  if (values.length === 1) {
+    return {
+      heightCm: values[0],
+      rawValues: values,
+      widthCm: values[0],
+    };
+  }
+
+  if (values.length === 2) {
+    const [larger, smaller] = [...values].sort((left, right) => right - left);
+    return {
+      heightCm: larger,
+      rawValues: values,
+      widthCm: smaller,
+    };
+  }
+
+  const sortedValues = [...values].sort((left, right) => right - left);
+  const [heightCm, widthCm, depthCm] = sortedValues;
+
+  return {
+    depthCm,
+    heightCm,
+    rawValues: values,
+    widthCm,
+  };
+}
+
+function getAnnotationOrientation(annotation: DimensionAnnotation) {
+  const deltaX = Math.abs(annotation.x2 - annotation.x1);
+  const deltaY = Math.abs(annotation.y2 - annotation.y1);
+
+  if (deltaY > deltaX * 1.25) {
+    return "vertical";
+  }
+
+  if (deltaX > deltaY * 1.25) {
+    return "horizontal";
+  }
+
+  return "diagonal";
+}
+
+function getAutoDimensionLabel(params: {
+  annotation: DimensionAnnotation;
+  annotations: DimensionAnnotation[];
+  autoDimensionValues?: AutoDimensionValues | null;
+}) {
+  const { annotation, annotations, autoDimensionValues } = params;
+  if (!autoDimensionValues) {
+    return "";
+  }
+
+  if (autoDimensionValues.rawValues.length === 1) {
+    return formatDimensionValue(autoDimensionValues.rawValues[0]);
+  }
+
+  const orientation = getAnnotationOrientation(annotation);
+  if (orientation === "vertical" && autoDimensionValues.heightCm) {
+    return formatDimensionValue(autoDimensionValues.heightCm);
+  }
+
+  if (orientation === "diagonal" && autoDimensionValues.depthCm) {
+    return formatDimensionValue(autoDimensionValues.depthCm);
+  }
+
+  if (orientation === "horizontal") {
+    const horizontalAnnotations = annotations
+      .filter((item) => getAnnotationOrientation(item) === "horizontal")
+      .sort(
+        (left, right) => getDimensionLength(right) - getDimensionLength(left)
+      );
+    const currentIndex = horizontalAnnotations.findIndex(
+      (item) => item.id === annotation.id
+    );
+
+    if (currentIndex <= 0 && autoDimensionValues.widthCm) {
+      return formatDimensionValue(autoDimensionValues.widthCm);
+    }
+
+    if (autoDimensionValues.depthCm) {
+      return formatDimensionValue(autoDimensionValues.depthCm);
+    }
+
+    if (autoDimensionValues.widthCm) {
+      return formatDimensionValue(autoDimensionValues.widthCm);
+    }
+  }
+
+  if (autoDimensionValues.widthCm) {
+    return formatDimensionValue(autoDimensionValues.widthCm);
+  }
+
+  if (autoDimensionValues.heightCm) {
+    return formatDimensionValue(autoDimensionValues.heightCm);
+  }
+
+  return "";
+}
+
+function getDimensionLabel(params: {
+  annotation: DimensionAnnotation;
+  annotations: DimensionAnnotation[];
+  autoDimensionValues?: AutoDimensionValues | null;
+}) {
+  const { annotation, annotations, autoDimensionValues } = params;
   const customLabel = String(annotation.label || "").trim();
   if (customLabel) {
     return customLabel;
   }
 
-  return `${Math.max(1, Math.round(getDimensionLength(annotation)))} px`;
+  return getAutoDimensionLabel({
+    annotation,
+    annotations,
+    autoDimensionValues,
+  });
 }
 
 function mapImagePointToPreviewPoint(
@@ -205,11 +347,20 @@ function getAnnotationVector(x1: number, y1: number, x2: number, y2: number) {
   };
 }
 
-function getPreviewAnnotationGeometry(
-  annotation: DimensionAnnotation,
-  previewRect: PreviewRect,
-  imageSize: ImageSize
-) {
+function getPreviewAnnotationGeometry(params: {
+  annotation: DimensionAnnotation;
+  annotations: DimensionAnnotation[];
+  previewRect: PreviewRect;
+  imageSize: ImageSize;
+  autoDimensionValues?: AutoDimensionValues | null;
+}) {
+  const {
+    annotation,
+    annotations,
+    previewRect,
+    imageSize,
+    autoDimensionValues,
+  } = params;
   const start = mapImagePointToPreviewPoint(
     { x: annotation.x1, y: annotation.y1 },
     previewRect,
@@ -221,7 +372,11 @@ function getPreviewAnnotationGeometry(
     imageSize
   );
   const vector = getAnnotationVector(start.x, start.y, end.x, end.y);
-  const label = getDimensionLabel(annotation);
+  const label = getDimensionLabel({
+    annotation,
+    annotations,
+    autoDimensionValues,
+  });
   const labelOffset = 16;
   const rawAngleRadians = Math.atan2(vector.dy, vector.dx);
   const angleRadians =
@@ -323,12 +478,20 @@ function drawDimensionCap(params: {
   context.stroke();
 }
 
-function drawAnnotationToCanvas(
-  context: CanvasRenderingContext2D,
-  annotation: DimensionAnnotation,
-  imageSize: ImageSize
-) {
-  const label = getDimensionLabel(annotation);
+function drawAnnotationToCanvas(params: {
+  context: CanvasRenderingContext2D;
+  annotation: DimensionAnnotation;
+  imageSize: ImageSize;
+  annotations: DimensionAnnotation[];
+  autoDimensionValues?: AutoDimensionValues | null;
+}) {
+  const { context, annotation, imageSize, annotations, autoDimensionValues } =
+    params;
+  const label = getDimensionLabel({
+    annotation,
+    annotations,
+    autoDimensionValues,
+  });
   const vector = getAnnotationVector(
     annotation.x1,
     annotation.y1,
@@ -399,6 +562,7 @@ export function AgentPsdTemplateExportPreview({
   imageAlt = "PSD 模板导出结果",
   enableDimensionAnnotations = false,
   downloadName,
+  sizeInfoText,
 }: AgentPsdTemplateExportPreviewProps) {
   const previewViewportRef = useRef<HTMLDivElement | null>(null);
   const dragStateRef = useRef<DragState | null>(null);
@@ -416,6 +580,10 @@ export function AgentPsdTemplateExportPreview({
     () => buildImageProxyUrl(imageUrl),
     [imageUrl]
   );
+  const autoDimensionValues = useMemo(
+    () => extractAutoDimensionValues(sizeInfoText),
+    [sizeInfoText]
+  );
   const selectedAnnotation = useMemo(
     () =>
       annotations.find(
@@ -794,9 +962,15 @@ export function AgentPsdTemplateExportPreview({
 
         context.drawImage(image, 0, 0, canvas.width, canvas.height);
         for (const annotation of annotations) {
-          drawAnnotationToCanvas(context, annotation, {
-            width: canvas.width,
-            height: canvas.height,
+          drawAnnotationToCanvas({
+            annotation,
+            annotations,
+            autoDimensionValues,
+            context,
+            imageSize: {
+              width: canvas.width,
+              height: canvas.height,
+            },
           });
         }
 
@@ -824,7 +998,13 @@ export function AgentPsdTemplateExportPreview({
     } finally {
       setIsDownloading(false);
     }
-  }, [annotations, downloadName, enableDimensionAnnotations, imageUrl]);
+  }, [
+    annotations,
+    autoDimensionValues,
+    downloadName,
+    enableDimensionAnnotations,
+    imageUrl,
+  ]);
 
   return (
     <div className="flex min-h-0 flex-1 flex-col gap-3 rounded-2xl border border-white/10 bg-white/[0.02] p-3.5 xl:p-4">
@@ -915,11 +1095,13 @@ export function AgentPsdTemplateExportPreview({
             >
               {annotations.map((annotation) => {
                 const isSelected = annotation.id === selectedAnnotationId;
-                const geometry = getPreviewAnnotationGeometry(
+                const geometry = getPreviewAnnotationGeometry({
                   annotation,
+                  annotations,
+                  autoDimensionValues,
+                  imageSize,
                   previewRect,
-                  imageSize
-                );
+                });
                 const strokeWidth = isSelected ? 2 : 1.5;
                 const tickLength = isSelected ? 8 : 6.5;
 
@@ -1068,17 +1250,25 @@ export function AgentPsdTemplateExportPreview({
                 <div>
                   <div className="font-medium text-sm text-white">尺寸文字</div>
                   <div className="text-white/45 text-xs">
-                    留空时会自动显示像素长度，可手动改成真实尺寸。
+                    {autoDimensionValues
+                      ? "留空时会优先使用商品尺寸信息自动显示 cm，可继续手动覆盖。"
+                      : "当前没有拿到商品尺寸信息，请直接手动输入 cm 尺寸。"}
                   </div>
                 </div>
-                <div className="rounded-full border border-white/10 bg-black/40 px-2.5 py-1 text-[11px] text-white/65">
-                  长度{" "}
-                  {Math.max(
-                    1,
-                    Math.round(getDimensionLength(selectedAnnotation))
-                  )}{" "}
-                  px
-                </div>
+                {getDimensionLabel({
+                  annotation: selectedAnnotation,
+                  annotations,
+                  autoDimensionValues,
+                }) ? (
+                  <div className="rounded-full border border-white/10 bg-black/40 px-2.5 py-1 text-[11px] text-white/65">
+                    建议值{" "}
+                    {getDimensionLabel({
+                      annotation: selectedAnnotation,
+                      annotations,
+                      autoDimensionValues,
+                    })}
+                  </div>
+                ) : null}
               </div>
               <Input
                 className="border-white/10 bg-black/35 text-white placeholder:text-white/28"