diff --git a/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-analysis-active.imageset/Contents.json b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-analysis-active.imageset/Contents.json
new file mode 100644
index 0000000..5589aae
--- /dev/null
+++ b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-analysis-active.imageset/Contents.json
@@ -0,0 +1 @@
+{"images":[{"filename":"tab-analysis-active.svg","idiom":"universal"}],"info":{"author":"xcode","version":1},"properties":{"preserves-vector-representation":true}}
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new file mode 100644
index 0000000..215039f
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+++ b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-analysis-active.imageset/tab-analysis-active.svg
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diff --git a/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-analysis.imageset/Contents.json b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-analysis.imageset/Contents.json
new file mode 100644
index 0000000..a61ddc0
--- /dev/null
+++ b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-analysis.imageset/Contents.json
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+{"images":[{"filename":"tab-analysis.svg","idiom":"universal"}],"info":{"author":"xcode","version":1},"properties":{"preserves-vector-representation":true}}
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index 0000000..d08e9a6
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diff --git a/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-library-active.imageset/Contents.json b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-library-active.imageset/Contents.json
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index 0000000..f443e90
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+++ b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-library-active.imageset/Contents.json
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+{"images":[{"filename":"tab-library-active.svg","idiom":"universal"}],"info":{"author":"xcode","version":1},"properties":{"preserves-vector-representation":true}}
diff --git a/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-library-active.imageset/tab-library-active.svg b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-library-active.imageset/tab-library-active.svg
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diff --git a/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-library.imageset/Contents.json b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-library.imageset/Contents.json
new file mode 100644
index 0000000..fd92be4
--- /dev/null
+++ b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-library.imageset/Contents.json
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+{"images":[{"filename":"tab-library.svg","idiom":"universal"}],"info":{"author":"xcode","version":1},"properties":{"preserves-vector-representation":true}}
diff --git a/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-library.imageset/tab-library.svg b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-library.imageset/tab-library.svg
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diff --git a/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-profile-active.imageset/Contents.json b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-profile-active.imageset/Contents.json
new file mode 100644
index 0000000..ff188c0
--- /dev/null
+++ b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-profile-active.imageset/Contents.json
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diff --git a/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-profile-active.imageset/tab-profile-active.svg b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-profile-active.imageset/tab-profile-active.svg
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diff --git a/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-profile.imageset/Contents.json b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-profile.imageset/Contents.json
new file mode 100644
index 0000000..656973b
--- /dev/null
+++ b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-profile.imageset/Contents.json
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+{"images":[{"filename":"tab-profile.svg","idiom":"universal"}],"info":{"author":"xcode","version":1},"properties":{"preserves-vector-representation":true}}
diff --git a/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-profile.imageset/tab-profile.svg b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-profile.imageset/tab-profile.svg
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+++ b/AIStudyApp/AIStudyApp/Assets.xcassets/Icons/tab-profile.imageset/tab-profile.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="24" height="24" viewBox="0 0 24 24" fill="none"><path d="M2 17.4826C2 15.6877 3.45507 14.2326 5.25 14.2326L18.75 14.2326C20.5449 14.2326 22 15.6877 22 17.4826L22 18.4479C22 20.2428 20.5449 21.6979 18.75 21.6979L5.25 21.6979C3.45507 21.6979 2 20.2428 2 18.4479L2 17.4826ZM5.25 15.7326C4.2835 15.7326 3.5 16.5161 3.5 17.4826L3.5 18.4479C3.5 19.4144 4.2835 20.1979 5.25 20.1979L18.75 20.1979C19.7165 20.1979 20.5 19.4144 20.5 18.4479L20.5 17.4826C20.5 16.5161 19.7165 15.7326 18.75 15.7326L5.25 15.7326Z" fill-rule="evenodd" fill="#000000"></path><path d="M18.9219 17.9652C18.9219 18.3795 18.5861 18.7152 18.1719 18.7152L17.6875 18.7152C17.2733 18.7152 16.9375 18.3795 16.9375 17.9652C16.9375 17.551 17.2733 17.2152 17.6875 17.2152L18.1719 17.2152C18.5861 17.2152 18.9219 17.551 18.9219 17.9652Z" fill-rule="evenodd" fill="#000000"></path><path d="M12.7617 17.9652C12.7617 18.3795 12.4259 18.7152 12.0117 18.7152L5.82858 18.7152C5.41436 18.7152 5.07858 18.3795 5.07858 17.9652C5.07858 17.551 5.41436 17.2152 5.82858 17.2152L12.0117 17.2152C12.4259 17.2152 12.7617 17.551 12.7617 17.9652Z" fill-rule="evenodd" fill="#AEAEAE"></path><path d="M2 11.5174C2 9.72244 3.45507 8.26736 5.25 8.26736L18.75 8.26736C20.5449 8.26736 22 9.72244 22 11.5174L22 12.4826C22 14.2775 20.5449 15.7326 18.75 15.7326L5.25 15.7326C3.45507 15.7326 2 14.2775 2 12.4826L2 11.5174ZM5.25 9.76736C4.2835 9.76736 3.5 10.5509 3.5 11.5174L3.5 12.4826C3.5 13.4491 4.2835 14.2326 5.25 14.2326L18.75 14.2326C19.7165 14.2326 20.5 13.4491 20.5 12.4826L20.5 11.5174C20.5 10.5509 19.7165 9.76736 18.75 9.76736L5.25 9.76736Z" fill-rule="evenodd" fill="#000000"></path><path d="M18.9219 12C18.9219 12.4142 18.5861 12.75 18.1719 12.75L17.6875 12.75C17.2733 12.75 16.9375 12.4142 16.9375 12C16.9375 11.5858 17.2733 11.25 17.6875 11.25L18.1719 11.25C18.5861 11.25 18.9219 11.5858 18.9219 12Z" fill-rule="evenodd" fill="#000000"></path><path d="M12.7617 12C12.7617 12.4142 12.4259 12.75 12.0117 12.75L5.82858 12.75C5.41436 12.75 5.07858 12.4142 5.07858 12C5.07858 11.5858 5.41436 11.25 5.82858 11.25L12.0117 11.25C12.4259 11.25 12.7617 11.5858 12.7617 12Z" fill-rule="evenodd" fill="#AEAEAE"></path><path d="M2 5.55212C2 3.7572 3.45507 2.30212 5.25 2.30212L18.75 2.30212C20.5449 2.30212 22 3.7572 22 5.55212L22 6.51738C22 8.31231 20.5449 9.76738 18.75 9.76738L5.25 9.76738C3.45507 9.76738 2 8.31231 2 6.51738L2 5.55212ZM5.25 3.80212C4.2835 3.80212 3.5 4.58563 3.5 5.55212L3.5 6.51738C3.5 7.48388 4.2835 8.26738 5.25 8.26738L18.75 8.26738C19.7165 8.26738 20.5 7.48388 20.5 6.51738L20.5 5.55212C20.5 4.58563 19.7165 3.80212 18.75 3.80212L5.25 3.80212Z" fill-rule="evenodd" fill="#000000"></path><path d="M18.9219 6.03473C18.9219 6.44894 18.5861 6.78473 18.1719 6.78473L17.6875 6.78473C17.2733 6.78473 16.9375 6.44894 16.9375 6.03473C16.9375 5.62052 17.2733 5.28473 17.6875 5.28473L18.1719 5.28473C18.5861 5.28473 18.9219 5.62052 18.9219 6.03473Z" fill-rule="evenodd" fill="#000000"></path><path d="M12.7617 6.03473C12.7617 6.44894 12.4259 6.78473 12.0117 6.78473L5.82858 6.78473C5.41436 6.78473 5.07858 6.44894 5.07858 6.03473C5.07858 5.62052 5.41436 5.28473 5.82858 5.28473L12.0117 5.28473C12.4259 5.28473 12.7617 5.62052 12.7617 6.03473Z" fill-rule="evenodd" fill="#AEAEAE"></path></svg>
diff --git a/AIStudyApp/AIStudyApp/ContentView.swift b/AIStudyApp/AIStudyApp/ContentView.swift
index 6ed2d84..9b339a2 100644
--- a/AIStudyApp/AIStudyApp/ContentView.swift
+++ b/AIStudyApp/AIStudyApp/ContentView.swift
@@ -60,7 +60,7 @@ struct ContentView: View {
                     .background(Color.zxCanvas.ignoresSafeArea())
             }
             .tabItem {
-                Label("知识库", systemImage: "books.vertical")
+                Label("知识库", image: selectedTab == "library" ? "tab-library-active" : "tab-library")
             }
             .tag("library")
 
@@ -69,7 +69,7 @@ struct ContentView: View {
                     .background(Color.zxCanvas.ignoresSafeArea())
             }
             .tabItem {
-                Label("分析", systemImage: "chart.bar")
+                Label("分析", image: selectedTab == "analysis" ? "tab-analysis-active" : "tab-analysis")
             }
             .tag("analysis")
 
@@ -78,7 +78,7 @@ struct ContentView: View {
                     .background(Color.zxCanvas.ignoresSafeArea())
             }
             .tabItem {
-                Label("我的", systemImage: "person.crop.circle")
+                Label("我的", image: selectedTab == "profile" ? "tab-profile-active" : "tab-profile")
             }
             .tag("profile")
         }