diff --git a/docs/reference/rest-api/defs.asciidoc b/docs/reference/rest-api/defs.asciidoc
index 4eeedc5539992..834662df06d62 100644
--- a/docs/reference/rest-api/defs.asciidoc
+++ b/docs/reference/rest-api/defs.asciidoc
@@ -1,20 +1,19 @@
 [role="xpack"]
 [[api-definitions]]
-== Definitions
+== 定义
 
-These resource definitions are used in {ml} and {security} APIs and in {kib} 
-advanced {ml} job configuration options.
+下面这些资源定义被用在 {ml} 和 {security} 相关的 API 以及 {kib} 高级 {ml} 作业配置选项中。
 
-* <<ml-calendar-resource,Calendars>>
+* <<ml-calendar-resource,日历>>
 * <<ml-datafeed-resource,{dfeeds-cap}>>
-* <<ml-datafeed-counts,{dfeed-cap} counts>>
-* <<ml-filter-resource,Filters>>
-* <<ml-job-resource,Jobs>>
-* <<ml-jobstats,Job statistics>>
-* <<ml-snapshot-resource,Model snapshots>>
-* <<ml-results-resource,Results>>
-* <<role-mapping-resources,Role mappings>>
-* <<ml-event-resource,Scheduled Events>>
+* <<ml-datafeed-counts,{dfeed-cap} 计数>>
+* <<ml-filter-resource,过滤器>>
+* <<ml-job-resource,作业>>
+* <<ml-jobstats,作业统计>>
+* <<ml-snapshot-resource,模型快照>>
+* <<ml-results-resource,结果>>
+* <<role-mapping-resources,角色映射>>
+* <<ml-event-resource,预定事件>>
 
 include::{es-repo-dir}/ml/apis/calendarresource.asciidoc[]
 include::{es-repo-dir}/ml/apis/datafeedresource.asciidoc[]
diff --git a/docs/reference/rest-api/index.asciidoc b/docs/reference/rest-api/index.asciidoc
index 5aef27e127500..ac458e44d4b70 100644
--- a/docs/reference/rest-api/index.asciidoc
+++ b/docs/reference/rest-api/index.asciidoc
@@ -4,18 +4,17 @@
 
 [partintro]
 --
-{xpack} exposes REST APIs that are used by the UI components and can be called
-directly to configure and access {xpack} features.
+{xpack} 开放了用户界面组件使用的 REST API，可以直接调用这些 API 来配置和访问 {xpack} 的功能模块。
 
-* <<info-api,Info API>>
-* <<ccr-apis,Cross-cluster replication APIs>>
-* <<graph-explore-api,Graph Explore API>>
-* <<licensing-apis,Licensing APIs>>
-* <<ml-apis,Machine Learning APIs>>
-* <<security-api,Security APIs>>
-* <<watcher-api,Watcher APIs>>
-* <<rollup-apis,Rollup APIs>>
-* <<migration-api,Migration APIs>>
+* <<info-api,信息 API>>
+* <<ccr-apis,跨集群复制 APIs>>
+* <<graph-explore-api,图形探索 API>>
+* <<licensing-apis,许可证 APIs>>
+* <<ml-apis,机器学习 APIs>>
+* <<security-api,安全 API>>
+* <<watcher-api,监控 API>>
+* <<rollup-apis,上卷 APIs>>
+* <<migration-api,迁移 API>>
 --
 
 
diff --git a/docs/reference/rest-api/info.asciidoc b/docs/reference/rest-api/info.asciidoc
index 6d5967d0cdc7d..820093bd66b4b 100644
--- a/docs/reference/rest-api/info.asciidoc
+++ b/docs/reference/rest-api/info.asciidoc
@@ -1,45 +1,41 @@
 [role="xpack"]
 [testenv="basic"]
 [[info-api]]
-== Info API
+== 信息 API
 
-The info API provides general information about the installed {xpack} features.
+信息 API 提供了 {xpack} 已安装功能的概要信息。
 
 [float]
-=== Request
+=== 请求
 
 `GET /_xpack`
 
 [float]
-=== Description
+=== 说明
 
-The information provided by this API includes:
+通过信息 API 可获取以下信息：
 
-* Build Information - including the build number and timestamp.
-* License Information - basic information about the currently installed license.
-* Features Information - The features that are currently enabled and available
-  under the current license.
+* 构建（Build）信息 - 包括内部版本号和时间戳。
+* 许可证（License）信息 - 当前安装的许可证的基本信息。
+* 功能（Features）信息 - 当前许可证下已启用和可用的功能。
 
 [float]
-=== Path Parameters
+=== 路径参数
 
 `categories`::
-  (list) A comma-separated list of the information categories to include in the
-  response. For example, `build,license,features`.
+  (list) 要包含在响应中的的信息类别列表，以逗号分隔。例如：`build,license,features`。
 
 `human`::
-  (boolean) Defines whether additional human-readable information is included in
-  the response. In particular, it adds descriptions and a tag line. The
-  default value is `true`.
+  (boolean) 定义响应中是否包含附加的人类可读的信息，它将会添加描述项和标记行。该配置项的默认值为 `true`。
 
 //=== Query Parameters
 
 //=== Authorization
 
 [float]
-=== Examples
+=== 示例
 
-The following example queries the info API:
+下面是信息 API 的查询示例：
 
 [source,js]
 ------------------------------------------------------------
@@ -47,7 +43,7 @@ GET /_xpack
 ------------------------------------------------------------
 // CONSOLE
 
-Example response:
+示例响应：
 [source,js]
 ------------------------------------------------------------
 {
@@ -114,7 +110,7 @@ Example response:
 // TESTRESPONSE[s/"build_hash" : "3d394c6afe2fc5"/"build_hash": "$body.features.ml.native_code_info.build_hash"/]
 // So much s/// but at least we test that the layout is close to matching....
 
-The following example only returns the build and features information:
+下面的示例仅返回构建和功能信息：
 
 [source,js]
 ------------------------------------------------------------
@@ -122,7 +118,7 @@ GET /_xpack?categories=build,features
 ------------------------------------------------------------
 // CONSOLE
 
-The following example removes the descriptions from the response:
+下面的示例移除了响应中的描述信息：
 
 [source,js]
 ------------------------------------------------------------