diff --git a/app/src/main/assets/updateLog.md b/app/src/main/assets/updateLog.md
index ad140fd24..d8d20dcd8 100644
--- a/app/src/main/assets/updateLog.md
+++ b/app/src/main/assets/updateLog.md
@@ -16,6 +16,7 @@
 * js添加 getVerificationCode startBrowserAwait
 * 监测网络变化及时更新web服务的IP
 * 优化在线tts导入
+* 替换规则添加超时字段
 
 **2022/05/02**
 
diff --git a/app/src/main/java/io/legado/app/data/entities/BookChapter.kt b/app/src/main/java/io/legado/app/data/entities/BookChapter.kt
index 5615bbdfd..124261a3f 100644
--- a/app/src/main/java/io/legado/app/data/entities/BookChapter.kt
+++ b/app/src/main/java/io/legado/app/data/entities/BookChapter.kt
@@ -98,7 +98,11 @@ data class BookChapter(
                 if (item.pattern.isNotEmpty()) {
                     try {
                         val mDisplayTitle = if (item.isRegex) {
-                            displayTitle.replace(item.pattern.toRegex(), item.replacement, 1000)
+                            displayTitle.replace(
+                                item.pattern.toRegex(),
+                                item.replacement,
+                                item.getValidTimeoutMillisecond()
+                            )
                         } else {
                             displayTitle.replace(item.pattern, item.replacement)
                         }
diff --git a/app/src/main/java/io/legado/app/data/entities/ReplaceRule.kt b/app/src/main/java/io/legado/app/data/entities/ReplaceRule.kt
index ddcf5cd7d..4c7f92047 100644
--- a/app/src/main/java/io/legado/app/data/entities/ReplaceRule.kt
+++ b/app/src/main/java/io/legado/app/data/entities/ReplaceRule.kt
@@ -84,4 +84,11 @@ data class ReplaceRule(
         }
         return true
     }
+
+    fun getValidTimeoutMillisecond(): Long {
+        if (timeoutMillisecond <= 0) {
+            return 3000L
+        }
+        return timeoutMillisecond
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/help/ContentProcessor.kt b/app/src/main/java/io/legado/app/help/ContentProcessor.kt
index b40d8a8c3..e841f8844 100644
--- a/app/src/main/java/io/legado/app/help/ContentProcessor.kt
+++ b/app/src/main/java/io/legado/app/help/ContentProcessor.kt
@@ -137,7 +137,11 @@ class ContentProcessor private constructor(
             if (item.pattern.isNotEmpty()) {
                 kotlin.runCatching {
                     mContent = if (item.isRegex) {
-                        mContent.replace(item.pattern.toRegex(), item.replacement, 3000L)
+                        mContent.replace(
+                            item.pattern.toRegex(),
+                            item.replacement,
+                            item.getValidTimeoutMillisecond()
+                        )
                     } else {
                         mContent.replace(item.pattern, item.replacement)
                     }
diff --git a/app/src/main/java/io/legado/app/ui/replace/edit/ReplaceEditActivity.kt b/app/src/main/java/io/legado/app/ui/replace/edit/ReplaceEditActivity.kt
index 192b66fb2..db469fd97 100644
--- a/app/src/main/java/io/legado/app/ui/replace/edit/ReplaceEditActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/replace/edit/ReplaceEditActivity.kt
@@ -110,7 +110,7 @@ class ReplaceEditActivity :
         replaceRule.scopeTitle = cbScopeTitle.isChecked
         replaceRule.scopeContent = cbScopeContent.isChecked
         replaceRule.scope = etScope.text.toString()
-        replaceRule.timeoutMillisecond = etTimeout.text.toString().toLong()
+        replaceRule.timeoutMillisecond = etTimeout.text.toString().ifEmpty { "3000" }.toLong()
         return replaceRule
     }