diff --git a/docs/_includes/navigation.html b/docs/_includes/navigation.html
index 5fae77e8..ef0d694b 100644
--- a/docs/_includes/navigation.html
+++ b/docs/_includes/navigation.html
@@ -16,6 +16,7 @@
 			<li class="">
 				<a href="#"><span class="icon-chevron-down"></span>登录集成</a>
 				<ul class="nav nav-list">
+					<li class=""><a href="{{site.baseurl}}/authn/captcha.html"><span class="none"></span>登录验证码</a></li>
 					<li class=""><a href="{{site.baseurl}}/authn/social.html"><span class="none"></span>社交集成</a></li>
 					<li class=""><a href="{{site.baseurl}}/authn/google.html"><span class="none"></span>Google Authenticator</a></li>
 					<li class=""><a href="{{site.baseurl}}/authn/kerberos.html"><span class="none"></span>Kerberos/Spengo/AD</a></li>
diff --git a/docs/authn/captcha.md b/docs/authn/captcha.md
new file mode 100644
index 00000000..a9d54b26
--- /dev/null
+++ b/docs/authn/captcha.md
@@ -0,0 +1,181 @@
+<h3>验证码</h3>
+
+验证码（CAPTCHA）是“Completely Automated Public Turing test to tell Computers and Humans Apart”（全自动区分计算机和人类的图灵测试）的缩写，是一种区分用户是计算机还是人的公共全自动程序。可以防止用户用特定程序暴力破解方式进行不断的登陆尝试。
+
+文本验证码
+
+<img src="{{ "/images/authn/captcha_text.png" | prepend: site.baseurl }}?{{ site.time | date: "%Y%m%d%H%M" }}"  alt=""/>
+
+算术验证码
+<img src="{{ "/images/authn/captcha_arithmetic.png" | prepend: site.baseurl }}?{{ site.time | date: "%Y%m%d%H%M" }}"  alt=""/>
+
+
+<h3>验证码配置</h3>
+MaxKey使用kaptcha作为验证码的插件，详细可参考Kaptchar详细配置表
+
+文件
+maxkey/config/applicationConfig.properties
+
+<pre><code class="ini hljs">
+#是否支持验证码
+config.login.captcha=true
+#text 文本， arithmetic 算术验证码
+config.login.captcha.type=text
+</code></pre>
+
+<h3>验证码配置文件</h3>
+文件
+maxkey/config/kaptcha.properties
+
+默认配置如下
+
+<pre><code class="ini hljs">
+#宽度
+kaptcha.image.width=80
+#长度
+kaptcha.image.height=25
+kaptcha.border=no
+kaptcha.obscurificator.impl=com.google.code.kaptcha.impl.ShadowGimpy
+kaptcha.textproducer.font.size=23
+#生成字符，默认值为数字
+kaptcha.textproducer.char.string=0123456789
+#位数
+kaptcha.textproducer.char.length=4
+kaptcha.noise.impl=com.google.code.kaptcha.impl.NoNoise
+</code></pre>
+
+
+当配置算术验证码时即 config.login.captcha.type=arithmetic
+
+kaptcha的配置中必须为数字
+
+<pre><code class="ini hljs">
+kaptcha.textproducer.char.string=0123456789
+</code></pre>
+
+
+<h3>Kaptchar详细配置表</h3>
+
+<table border="0" class="table table-striped table-bordered ">
+	<tbody>
+		<tr>
+			<td><strong>Constant</strong></td>
+			<td><strong>描述</strong></td>
+			<td><strong>默认值</strong></td>
+		</tr>
+		<tr>
+			<td>kaptcha.border</td>
+			<td>图片边框，合法值：yes , no</td>
+			<td>yes</td>
+		</tr>
+		<tr>
+			<td>kaptcha.border.color</td>
+			<td>边框颜色，合法值： r,g,b (and optional alpha) 或者 white,black,blue.</td>
+			<td>black</td>
+		</tr>
+		<tr>
+			<td>kaptcha.border.thickness</td>
+			<td>边框厚度，合法值：&gt;0</td>
+			<td>1</td>
+		</tr>
+		<tr>
+			<td>kaptcha.image.width</td>
+			<td>图片宽</td>
+			<td>200</td>
+		</tr>
+		<tr>
+			<td>kaptcha.image.height</td>
+			<td>图片高</td>
+			<td>50</td>
+		</tr>
+		<tr>
+			<td>kaptcha.producer.impl</td>
+			<td>图片实现类</td>
+			<td>com.google.code.kaptcha.impl.DefaultKaptcha</td>
+		</tr>
+		<tr>
+			<td>kaptcha.textproducer.impl</td>
+			<td>文本实现类</td>
+			<td>com.google.code.kaptcha.text.impl.DefaultTextCreator</td>
+		</tr>
+		<tr>
+			<td>kaptcha.textproducer.char.string</td>
+			<td>文本集合，验证码值从此集合中获取</td>
+			<td>abcde2345678gfynmnpwx</td>
+		</tr>
+		<tr>
+			<td>kaptcha.textproducer.char.length</td>
+			<td>验证码长度</td>
+			<td>5</td>
+		</tr>
+		<tr>
+			<td>kaptcha.textproducer.font.names</td>
+			<td>字体</td>
+			<td>Arial, Courier</td>
+		</tr>
+		<tr>
+			<td>kaptcha.textproducer.font.size</td>
+			<td>字体大小</td>
+			<td>40px.</td>
+		</tr>
+		<tr>
+			<td>kaptcha.textproducer.font.color</td>
+			<td>字体颜色，合法值： r,g,b &nbsp;或者 white,black,blue.</td>
+			<td>black</td>
+		</tr>
+		<tr>
+			<td>kaptcha.textproducer.char.space</td>
+			<td>文字间隔</td>
+			<td>2</td>
+		</tr>
+		<tr>
+			<td>kaptcha.noise.impl</td>
+			<td>干扰实现类</td>
+			<td>com.google.code.kaptcha.impl.DefaultNoise</td>
+		</tr>
+		<tr>
+			<td>kaptcha.noise.color</td>
+			<td>干扰&nbsp;颜色，合法值： r,g,b 或者 white,black,blue.</td>
+			<td>black</td>
+		</tr>
+		<tr>
+			<td>kaptcha.obscurificator.impl</td>
+			<td>图片样式：&nbsp;<br>
+				水纹com.google.code.kaptcha.impl.WaterRipple&nbsp;<br>
+				鱼眼com.google.code.kaptcha.impl.FishEyeGimpy<br>
+				阴影com.google.code.kaptcha.impl.ShadowGimpy
+			</td>
+			<td>com.google.code.kaptcha.impl.WaterRipple</td>
+		</tr>
+		<tr>
+			<td>kaptcha.background.impl</td>
+			<td>背景实现类</td>
+			<td>com.google.code.kaptcha.impl.DefaultBackground</td>
+		</tr>
+		<tr>
+			<td>kaptcha.background.clear.from</td>
+			<td>背景颜色渐变，开始颜色</td>
+			<td>light grey</td>
+		</tr>
+		<tr>
+			<td>kaptcha.background.clear.to</td>
+			<td>背景颜色渐变，&nbsp;结束颜色</td>
+			<td>white</td>
+		</tr>
+		<tr>
+			<td>kaptcha.word.impl</td>
+			<td>文字渲染器</td>
+			<td>com.google.code.kaptcha.text.impl.DefaultWordRenderer</td>
+		</tr>
+		<tr>
+			<td>kaptcha.session.key</td>
+			<td>session key</td>
+			<td>KAPTCHA_SESSION_KEY</td>
+		</tr>
+		<tr>
+			<td>kaptcha.session.date</td>
+			<td>session date</td>
+			<td>KAPTCHA_SESSION_DATE</td>
+		</tr>
+	</tbody>
+</table>
\ No newline at end of file
diff --git a/docs/images/authn/captcha_arithmetic.png b/docs/images/authn/captcha_arithmetic.png
new file mode 100644
index 00000000..4066f6e8
Binary files /dev/null and b/docs/images/authn/captcha_arithmetic.png differ
diff --git a/docs/images/authn/captcha_text.png b/docs/images/authn/captcha_text.png
new file mode 100644
index 00000000..49c6d4d3
Binary files /dev/null and b/docs/images/authn/captcha_text.png differ
diff --git a/maxkey-web-maxkey/src/main/webapp/NewFile.jsp b/maxkey-web-maxkey/src/main/webapp/NewFile.jsp
new file mode 100644
index 00000000..d5f4daa4
--- /dev/null
+++ b/maxkey-web-maxkey/src/main/webapp/NewFile.jsp
@@ -0,0 +1,12 @@
+<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
+    pageEncoding="ISO-8859-1"%>
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="ISO-8859-1">
+<title>Insert title here</title>
+</head>
+<body>
+
+</body>
+</html>
\ No newline at end of file