diff --git a/src/components/ProjectMaterialsCenter.tsx b/src/components/ProjectMaterialsCenter.tsx
index c2429a4..62838c9 100644
--- a/src/components/ProjectMaterialsCenter.tsx
+++ b/src/components/ProjectMaterialsCenter.tsx
@@ -91,7 +91,7 @@ const ProjectMaterialsCenter: React.FC<ProjectMaterialsCenterProps> = ({
                         })
 
     // 类型过滤
-    let matchesType = material.tags.includes(filterType)
+    let matchesType = filterType === 'all' ? true : material.tags.includes(filterType)
 
     // 使用状态过滤
     let matchesUsage = true