diff --git a/docs/content.zh/docs/deployment/filesystems/common.md b/docs/content.zh/docs/deployment/filesystems/common.md
index a9d73a6cc0f5a..1df8975b4ca8b 100644
--- a/docs/content.zh/docs/deployment/filesystems/common.md
+++ b/docs/content.zh/docs/deployment/filesystems/common.md
@@ -50,9 +50,9 @@ fs.default-scheme: <default-fs>
 要限制文件系统的连接数，可将下列配置添加至 Flink 配置中。设置限制的文件系统由其 scheme 指定：
 
 ```yaml
-fs.<scheme>.limit.total: (数量，0/-1 表示无限制)
-fs.<scheme>.limit.input: (数量，0/-1 表示无限制)
-fs.<scheme>.limit.output: (数量，0/-1 表示无限制)
+fs.<scheme>.limit.total: (数量，0/-1 表示无连接限制)
+fs.<scheme>.limit.input: (数量，0/-1 表示无输入连接限制)
+fs.<scheme>.limit.output: (数量，0/-1 表示无输出连接限制)
 fs.<scheme>.limit.timeout: (毫秒，0 表示无穷)
 fs.<scheme>.limit.stream-timeout: (毫秒，0 表示无穷)
 ```
@@ -63,4 +63,4 @@ fs.<scheme>.limit.stream-timeout: (毫秒，0 表示无穷)
 
 连接数是按每个 TaskManager/文件系统来进行限制的。因为文件系统的创建是按照 scheme 和 authority 进行的，所以不同的 authority 具有独立的连接池，例如 `hdfs://myhdfs:50010/` 和 `hdfs://anotherhdfs:4399/` 会有单独的连接池。
 
-{{< top >}}
\ No newline at end of file
+{{< top >}}
diff --git a/docs/content/docs/deployment/filesystems/common.md b/docs/content/docs/deployment/filesystems/common.md
index 29a5e385c8e12..f9a50fb3cee84 100644
--- a/docs/content/docs/deployment/filesystems/common.md
+++ b/docs/content/docs/deployment/filesystems/common.md
@@ -52,9 +52,9 @@ To limit a specific file system's connections, add the following entries to the
 its scheme.
 
 ```yaml
-fs.<scheme>.limit.total: (number, 0/-1 mean no limit)
-fs.<scheme>.limit.input: (number, 0/-1 mean no limit)
-fs.<scheme>.limit.output: (number, 0/-1 mean no limit)
+fs.<scheme>.limit.total: (number, 0/-1 means there is no connection limit)
+fs.<scheme>.limit.input: (number, 0/-1 means there is no input connection limit)
+fs.<scheme>.limit.output: (number, 0/-1 means there is no output connection limit)
 fs.<scheme>.limit.timeout: (milliseconds, 0 means infinite)
 fs.<scheme>.limit.stream-timeout: (milliseconds, 0 means infinite)
 ```
@@ -69,4 +69,4 @@ Limit enforcement on a per TaskManager/file system basis.
 Because file systems creation occurs per scheme and authority, different
 authorities have independent connection pools. For example `hdfs://myhdfs:50010/` and `hdfs://anotherhdfs:4399/` will have separate pools.
 
-{{< top >}}
\ No newline at end of file
+{{< top >}}
diff --git a/flink-core/src/main/java/org/apache/flink/configuration/CoreOptions.java b/flink-core/src/main/java/org/apache/flink/configuration/CoreOptions.java
index 17f76935310b6..231d81e186506 100644
--- a/flink-core/src/main/java/org/apache/flink/configuration/CoreOptions.java
+++ b/flink-core/src/main/java/org/apache/flink/configuration/CoreOptions.java
@@ -527,7 +527,13 @@ public static String[] mergeListsToArray(List<String> base, List<String> append)
      * open. Unlimited be default.
      */
     public static ConfigOption<Integer> fileSystemConnectionLimit(String scheme) {
-        return ConfigOptions.key("fs." + scheme + ".limit.total").intType().defaultValue(-1);
+        return ConfigOptions.key("fs." + scheme + ".limit.total")
+                .intType()
+                .defaultValue(-1)
+                .withDescription(
+                        "The connection limit for the file system "
+                                + scheme
+                                + ". The valid value must >= -1. Values of -1 or 0 means there is no connection limit.");
     }
 
     /**
@@ -535,7 +541,13 @@ public static ConfigOption<Integer> fileSystemConnectionLimit(String scheme) {
      * Unlimited be default.
      */
     public static ConfigOption<Integer> fileSystemConnectionLimitIn(String scheme) {
-        return ConfigOptions.key("fs." + scheme + ".limit.input").intType().defaultValue(-1);
+        return ConfigOptions.key("fs." + scheme + ".limit.input")
+                .intType()
+                .defaultValue(-1)
+                .withDescription(
+                        "Input connection limit for the file system "
+                                + scheme
+                                + ". The valid value must >= -1. Values of -1 or 0 means there is no input connection limit.");
     }
 
     /**
@@ -543,7 +555,13 @@ public static ConfigOption<Integer> fileSystemConnectionLimitIn(String scheme) {
      * Unlimited be default.
      */
     public static ConfigOption<Integer> fileSystemConnectionLimitOut(String scheme) {
-        return ConfigOptions.key("fs." + scheme + ".limit.output").intType().defaultValue(-1);
+        return ConfigOptions.key("fs." + scheme + ".limit.output")
+                .intType()
+                .defaultValue(-1)
+                .withDescription(
+                        "Output connection limit for the file system "
+                                + scheme
+                                + ". The valid value must >= -1. Values of -1 or 0 means there is no output connection limit.");
     }
 
     /**