diff --git a/frontend/src/models/inbound.js b/frontend/src/models/inbound.js
index cccd8d4d..f8f1738e 100644
--- a/frontend/src/models/inbound.js
+++ b/frontend/src/models/inbound.js
@@ -687,8 +687,9 @@ export class HysteriaMasquerade extends XrayCommonClass {
     }
 
     static fromJson(json = {}) {
+        const type = ['proxy', 'file', 'string'].includes(json.type) ? json.type : 'proxy';
         return new HysteriaMasquerade(
-            json.type,
+            type,
             json.dir,
             json.url,
             json.rewriteHost,
diff --git a/frontend/src/pages/inbounds/InboundFormModal.vue b/frontend/src/pages/inbounds/InboundFormModal.vue
index fd045bbb..7eebd594 100644
--- a/frontend/src/pages/inbounds/InboundFormModal.vue
+++ b/frontend/src/pages/inbounds/InboundFormModal.vue
@@ -1671,6 +1671,74 @@ watch(
               </a-select>
             </a-form-item>
           </template>
+
+          <!-- ====== Hysteria Masquerade ====== -->
+          <!-- Per https://xtls.github.io/config/transports/hysteria.html#masqobject -->
+          <template v-if="protocol === Protocols.HYSTERIA">
+            <a-form-item label="Masquerade">
+              <a-switch v-model:checked="inbound.stream.hysteria.masqueradeSwitch" />
+            </a-form-item>
+            <template v-if="inbound.stream.hysteria.masqueradeSwitch">
+              <a-form-item label="Type">
+                <a-select v-model:value="inbound.stream.hysteria.masquerade.type" :style="{ width: '50%' }">
+                  <a-select-option value="proxy">Proxy</a-select-option>
+                  <a-select-option value="file">File</a-select-option>
+                  <a-select-option value="string">String</a-select-option>
+                </a-select>
+              </a-form-item>
+
+              <!-- Proxy type: url / rewriteHost / insecure -->
+              <template v-if="inbound.stream.hysteria.masquerade.type === 'proxy'">
+                <a-form-item label="URL">
+                  <a-input v-model:value="inbound.stream.hysteria.masquerade.url" placeholder="https://example.com" />
+                </a-form-item>
+                <a-form-item label="Rewrite Host">
+                  <a-switch v-model:checked="inbound.stream.hysteria.masquerade.rewriteHost" />
+                </a-form-item>
+                <a-form-item label="Insecure">
+                  <a-switch v-model:checked="inbound.stream.hysteria.masquerade.insecure" />
+                </a-form-item>
+              </template>
+
+              <!-- File type: dir -->
+              <a-form-item v-if="inbound.stream.hysteria.masquerade.type === 'file'" label="Directory">
+                <a-input v-model:value="inbound.stream.hysteria.masquerade.dir" placeholder="/path/to/www" />
+              </a-form-item>
+
+              <!-- String type: content / statusCode / headers -->
+              <template v-if="inbound.stream.hysteria.masquerade.type === 'string'">
+                <a-form-item label="Content">
+                  <a-textarea v-model:value="inbound.stream.hysteria.masquerade.content"
+                    :auto-size="{ minRows: 2, maxRows: 6 }" />
+                </a-form-item>
+                <a-form-item label="Status Code">
+                  <a-input-number v-model:value="inbound.stream.hysteria.masquerade.statusCode" :min="100" :max="599"
+                    placeholder="200" />
+                </a-form-item>
+                <a-form-item label="Headers">
+                  <a-button size="small" @click="inbound.stream.hysteria.masquerade.addHeader('', '')">
+                    <template #icon>
+                      <PlusOutlined />
+                    </template>
+                  </a-button>
+                </a-form-item>
+                <a-form-item v-if="inbound.stream.hysteria.masquerade.headers.length > 0" :wrapper-col="{ span: 24 }">
+                  <a-input-group v-for="(h, idx) in inbound.stream.hysteria.masquerade.headers" :key="`mh-${idx}`"
+                    compact class="mb-8">
+                    <a-input :style="{ width: '45%' }" v-model:value="h.name" placeholder="Name">
+                      <template #addonBefore>{{ idx + 1 }}</template>
+                    </a-input>
+                    <a-input :style="{ width: '45%' }" v-model:value="h.value" placeholder="Value" />
+                    <a-button @click="inbound.stream.hysteria.masquerade.removeHeader(idx)">
+                      <template #icon>
+                        <MinusOutlined />
+                      </template>
+                    </a-button>
+                  </a-input-group>
+                </a-form-item>
+              </template>
+            </template>
+          </template>
         </a-form>
 
         <!-- ====== FinalMask (TCP/UDP masks + QUIC params) ====== -->
diff --git a/sub/subJsonService.go b/sub/subJsonService.go
index fc35698e..4fe77b88 100644
--- a/sub/subJsonService.go
+++ b/sub/subJsonService.go
@@ -447,6 +447,9 @@ func (s *SubJsonService) genHy(inbound *model.Inbound, newStream map[string]any,
 	if udpIdleTimeout, ok := hyStream["udpIdleTimeout"].(float64); ok {
 		outHyStream["udpIdleTimeout"] = int(udpIdleTimeout)
 	}
+	if masquerade, ok := hyStream["masquerade"].(map[string]any); ok {
+		outHyStream["masquerade"] = masquerade
+	}
 	newStream["hysteriaSettings"] = outHyStream
 
 	if finalmask, ok := hyStream["finalmask"].(map[string]any); ok {