diff --git a/static/css/components/duplicates.css b/static/css/components/duplicates.css
index 2372ed64..9456e3fb 100644
--- a/static/css/components/duplicates.css
+++ b/static/css/components/duplicates.css
@@ -17,12 +17,13 @@
 }
 
 .duplicates-banner .banner-content {
-    max-width: 1400px; /* Match the container max-width */
+    position: relative;
+    max-width: 1400px;
     margin: 0 auto;
     display: flex;
     align-items: center;
     gap: 12px;
-    padding: 0 16px; /* Move horizontal padding to the content */
+    padding: 0 16px;
 }
 
 /* Responsive container for larger screens - match container in layout.css */
@@ -122,6 +123,23 @@
     margin-bottom: 24px;
     background: var(--card-bg);
     box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12); /* Add subtle shadow to groups */
+    /* Add responsive width settings to match banner */
+    max-width: 1400px;
+    margin-left: auto;
+    margin-right: auto;
+}
+
+/* Add responsive container adjustments for duplicate groups - match container in banner */
+@media (min-width: 2000px) {
+    .duplicate-group {
+        max-width: 1800px;
+    }
+}
+
+@media (min-width: 3000px) {
+    .duplicate-group {
+        max-width: 2400px;
+    }
 }
 
 .duplicate-group-header {
@@ -345,6 +363,49 @@
     }
 }
 
+/* Help icon styling */
+.help-icon {
+    color: var(--text-color);
+    opacity: 0.7;
+    cursor: help;
+    font-size: 16px;
+    margin-left: 8px;
+    transition: all 0.2s ease;
+}
+
+.help-icon:hover {
+    opacity: 1;
+    color: oklch(var(--lora-accent-l) var(--lora-accent-c) var(--lora-accent-h));
+}
+
+/* Help tooltip */
+.help-tooltip {
+    display: none;
+    position: absolute;
+    max-width: 400px;
+    background: var(--card-bg);
+    color: var(--text-color);
+    border: 1px solid var(--border-color);
+    border-radius: var(--border-radius-sm);
+    padding: 12px 16px;
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+    z-index: var(--z-overlay);
+    font-size: 0.9em;
+    margin-top: 10px;
+    text-align: left;
+    pointer-events: none;
+}
+
+.help-tooltip:after {
+    content: "";
+    position: absolute;
+    top: -8px;
+    left: 10px; /* Position the arrow near the left instead of center */
+    border-width: 0 8px 8px 8px;
+    border-style: solid;
+    border-color: transparent transparent var(--card-bg) transparent;
+}
+
 /* Responsive adjustments */
 @media (max-width: 768px) {
     .duplicates-banner .banner-content {
@@ -375,6 +436,15 @@
         margin-left: 0;
         flex: 1;
     }
+
+    .help-tooltip {
+        max-width: calc(100% - 40px);
+    }
+    
+    /* Remove the fixed positioning adjustments for mobile since we're now using dynamic positioning */
+    .help-tooltip:after {
+        left: 10px;
+    }
 }
 
 /* In dark mode, add additional distinction */
@@ -387,6 +457,10 @@ html[data-theme="dark"] .duplicate-group {
     box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25); /* Stronger shadow in dark mode */
 }
 
+html[data-theme="dark"] .help-tooltip {
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
+}
+
 /* Styles for disabled controls during duplicates mode */
 .disabled-during-duplicates {
     opacity: 0.5 !important;
diff --git a/static/js/components/ModelDuplicatesManager.js b/static/js/components/ModelDuplicatesManager.js
index f0a9b2e1..bb416b86 100644
--- a/static/js/components/ModelDuplicatesManager.js
+++ b/static/js/components/ModelDuplicatesManager.js
@@ -123,6 +123,9 @@ export class ModelDuplicatesManager {
         if (banner && countSpan) {
             countSpan.textContent = `Found ${this.duplicateGroups.length} duplicate group${this.duplicateGroups.length !== 1 ? 's' : ''}`;
             banner.style.display = 'block';
+            
+            // Setup help tooltip behavior
+            this.setupHelpTooltip();
         }
         
         // Disable virtual scrolling if active
@@ -551,4 +554,46 @@ export class ModelDuplicatesManager {
         // Use this method after refresh operations
         this.checkDuplicatesCount();
     }
+
+    // Add this new method for tooltip behavior
+    setupHelpTooltip() {
+      const helpIcon = document.getElementById('duplicatesHelp');
+      const helpTooltip = document.getElementById('duplicatesHelpTooltip');
+      
+      if (!helpIcon || !helpTooltip) return;
+      
+      helpIcon.addEventListener('mouseenter', (e) => {
+          // Get the container's positioning context
+          const bannerContent = helpIcon.closest('.banner-content');
+          
+          // Get positions relative to the viewport
+          const iconRect = helpIcon.getBoundingClientRect();
+          const bannerRect = bannerContent.getBoundingClientRect();
+          
+          // Set initial position relative to the banner content
+          helpTooltip.style.display = 'block';
+          helpTooltip.style.top = `${iconRect.bottom - bannerRect.top + 10}px`;
+          helpTooltip.style.left = `${iconRect.left - bannerRect.left - 10}px`;
+          
+          // Check if the tooltip is going off-screen to the right
+          const tooltipRect = helpTooltip.getBoundingClientRect();
+          const viewportWidth = window.innerWidth;
+          
+          if (tooltipRect.right > viewportWidth - 20) {
+              // Reposition relative to container if too close to right edge
+              helpTooltip.style.left = `${bannerContent.offsetWidth - tooltipRect.width - 20}px`;
+          }
+      });
+      
+      // Rest of the event listeners remain unchanged
+      helpIcon.addEventListener('mouseleave', () => {
+          helpTooltip.style.display = 'none';
+      });
+      
+      document.addEventListener('click', (e) => {
+          if (!helpIcon.contains(e.target)) {
+              helpTooltip.style.display = 'none';
+          }
+      });
+    }
 }
diff --git a/templates/checkpoints.html b/templates/checkpoints.html
index 702b6b95..e8ebce2d 100644
--- a/templates/checkpoints.html
+++ b/templates/checkpoints.html
@@ -37,6 +37,7 @@
         <div class="banner-content">
           <i class="fas fa-exclamation-triangle"></i>
           <span id="duplicatesCount">Found 0 duplicate groups</span>
+          <i class="fas fa-question-circle help-icon" id="duplicatesHelp" aria-label="Help information"></i>
           <div class="banner-actions">
             <button class="btn-delete-selected disabled" onclick="modelDuplicatesManager.deleteSelectedDuplicates()">
               Delete Selected (<span id="duplicatesSelectedCount">0</span>)
@@ -46,6 +47,10 @@
             </button>
           </div>
         </div>
+        <div class="help-tooltip" id="duplicatesHelpTooltip">
+          <p>Identical hashes mean identical model files, even if they have different names or previews.</p>
+          <p>Keep only one version (preferably with better metadata/previews) and safely delete the others.</p>
+        </div>
     </div>
     
     <!-- Checkpoint cards container -->
diff --git a/templates/loras.html b/templates/loras.html
index 025b58d2..f2c0ab82 100644
--- a/templates/loras.html
+++ b/templates/loras.html
@@ -26,6 +26,7 @@
         <div class="banner-content">
           <i class="fas fa-exclamation-triangle"></i>
           <span id="duplicatesCount">Found 0 duplicate groups</span>
+          <i class="fas fa-question-circle help-icon" id="duplicatesHelp" aria-label="Help information"></i>
           <div class="banner-actions">
             <button class="btn-delete-selected disabled" onclick="modelDuplicatesManager.deleteSelectedDuplicates()">
               Delete Selected (<span id="duplicatesSelectedCount">0</span>)
@@ -35,6 +36,10 @@
             </button>
           </div>
         </div>
+        <div class="help-tooltip" id="duplicatesHelpTooltip">
+          <p>Identical hashes mean identical model files, even if they have different names or previews.</p>
+          <p>Keep only one version (preferably with better metadata/previews) and safely delete the others.</p>
+        </div>
     </div>
     
     <!-- Lora卡片容器 -->