diff --git a/docs/en/14-reference/06-taosdump.md b/docs/en/14-reference/06-taosdump.md
index 96e68d0edbf9a2f6880cc557580d3dfb20def947..2105ba83fad9700674e28609016b07ef6de66833 100644
--- a/docs/en/14-reference/06-taosdump.md
+++ b/docs/en/14-reference/06-taosdump.md
@@ -29,7 +29,7 @@ There are two ways to install taosdump:
 
 1. backing up all databases: specify `-A` or `-all-databases` parameter.
 2. backup multiple specified databases: use `-D db1,db2,... ` parameters;
-3. back up some super or normal tables in the specified database: use `-dbname stbname1 stbname2 tbname1 tbname2 ... ` parameters. Note that the first parameter of this input sequence is the database name, and only one database is supported. The second and subsequent parameters are the names of super or normal tables in that database, separated by spaces.
+3. back up some super or normal tables in the specified database: use `dbname stbname1 stbname2 tbname1 tbname2 ... ` parameters. Note that the first parameter of this input sequence is the database name, and only one database is supported. The second and subsequent parameters are the names of super or normal tables in that database, separated by spaces.
 4. back up the system log database: TDengine clusters usually contain a system database named `log`. The data in this database is the data that TDengine runs itself, and the taosdump will not back up the log database by default. If users need to back up the log database, users can use the `-a` or `-allow-sys` command-line parameter. 
 5. Loose mode backup: taosdump version 1.4.1 onwards provides `-n` and `-L` parameters for backing up data without using escape characters and "loose" mode, which can reduce the number of backups if table names, column names, tag names do not use escape characters. This can also reduce the backup data time and backup data footprint. If you are unsure about using `-n` and `-L` conditions, please use the default parameters for "strict" mode backup. See the [official documentation](/taos-sql/escape) for a description of escaped characters.
 
@@ -104,7 +104,10 @@ Usage: taosdump [OPTION...] dbname [tbname ...]
                              use letter and number only. Default is NOT.
   -n, --no-escape            No escape char '`'. Default is using it.
   -T, --thread-num=THREAD_NUM   Number of thread for dump in file. Default is
-                             5.
+                             8.
+  -C, --cloud=CLOUD_DSN      specify a DSN to access TDengine cloud service
+  -R, --restful              Use RESTful interface to connect TDengine
+  -t, --timeout=SECONDS      The timeout seconds for websocket to interact.
   -g, --debug                Print debug info.
   -?, --help                 Give this help list
       --usage                Give a short usage message
diff --git a/docs/zh/14-reference/06-taosdump.md b/docs/zh/14-reference/06-taosdump.md
index 95ee20bfbae3f0f57c51b8fcd3bd9b35b4764f3d..625499a94926ac3f86e4d34976c70a0bfe7b0954 100644
--- a/docs/zh/14-reference/06-taosdump.md
+++ b/docs/zh/14-reference/06-taosdump.md
@@ -107,7 +107,10 @@ Usage: taosdump [OPTION...] dbname [tbname ...]
                              use letter and number only. Default is NOT.
   -n, --no-escape            No escape char '`'. Default is using it.
   -T, --thread-num=THREAD_NUM   Number of thread for dump in file. Default is
-                             5.
+                             8.
+  -C, --cloud=CLOUD_DSN      specify a DSN to access TDengine cloud service
+  -R, --restful              Use RESTful interface to connect TDengine
+  -t, --timeout=SECONDS      The timeout seconds for websocket to interact.
   -g, --debug                Print debug info.
   -?, --help                 Give this help list
       --usage                Give a short usage message