diff --git a/2.x/en/index.rst b/2.x/en/index.rst
index 005da23a9..8d63b7ddb 100644
--- a/2.x/en/index.rst
+++ b/2.x/en/index.rst
@@ -2,7 +2,7 @@
 FISCO BCOS Documentation
 ##############################################################
 
-.. image:: _static/images/FISCO_BCOS_Logo_2.0.png
+.. image:: _static/images/FISCO_BCOS_Logo_2_0.png
 
 FISCO BCOS is a reliable, secure, efficient and portable blockchain platform with proven success from many partners and successful financial-grade applications.
 
diff --git a/2.x/index.rst b/2.x/index.rst
index 4708e4279..8119f86bf 100644
--- a/2.x/index.rst
+++ b/2.x/index.rst
@@ -2,7 +2,7 @@
 FISCO BCOS 技术文档
 ##############################################################
 
-.. image:: _static/images/FISCO_BCOS_Logo_2.0.png
+.. image:: _static/images/FISCO_BCOS_Logo_2_0.png
 
 FISCO BCOS 是一个稳定、高效、安全的区块链底层平台，经过多家机构、多个应用，长时间在生产环境运行的实际检验。
 
diff --git a/3.x/_static/images/FISCO_BCOS_Logo_3.0.png b/3.x/_static/images/FISCO_BCOS_Logo_3_0.png
similarity index 100%
rename from 3.x/_static/images/FISCO_BCOS_Logo_3.0.png
rename to 3.x/_static/images/FISCO_BCOS_Logo_3_0.png
diff --git a/3.x/_templates/layout.html b/3.x/_templates/layout.html
index 57fb7cab3..37308785c 100644
--- a/3.x/_templates/layout.html
+++ b/3.x/_templates/layout.html
@@ -4,15 +4,14 @@
 {% block sidebartitle %}
 {{ super() }}
 <br>
-<img style="background-color:#fff; height: unset; width: unset;" alt="FISCO BCOS" src={{
-        pathto("_static/images/FISCO_BCOS_Logo_3.0.png",1) }} />
+<img style="background-color:#fff; height: unset; width: unset;" alt="FISCO BCOS" src="{{ pathto("_static/images/FISCO_BCOS_Logo_3_0.png",1) }}" />
 <a href="https://github.com/FISCO-BCOS"><img
                 style="background: transparent; padding: 0px; margin: auto auto auto auto; height: 30px;" alt="GitHub"
-                src="{{ pathto(" _static/images/github_button.svg", 1) }}" /></a>
-<a href="{{ pathto(" docs/community.html#QR", 1) }}"><img
+                src="{{ pathto("_static/images/github_button.svg", 1) }}" /></a>
+<a href="{{ pathto("docs/community.html#QR", 1) }}"><img
                 style="background: transparent; padding: 0px; margin: auto auto auto auto; height: 30px;" alt="微信群和公众号"
-                src="{{ pathto(" _static/images/wechat_button.svg", 1) }}" /></a>
+                src="{{ pathto("_static/images/wechat_button.svg", 1) }}" /></a>
 <a href="https://twitter.com/FiscoBcos"><img
                 style="background: transparent; padding: 0px; margin: auto auto auto auto; height: 30px;" alt="Twitter"
-                src="{{ pathto(" _static/images/twitter_button.svg", 1) }}" /></a>
-{% endblock %}
\ No newline at end of file
+                src="{{ pathto("_static/images/twitter_button.svg", 1) }}" /></a>
+{% endblock %}
diff --git a/3.x/zh_CN/index.rst b/3.x/zh_CN/index.rst
index 0773b25c0..1b571ea18 100644
--- a/3.x/zh_CN/index.rst
+++ b/3.x/zh_CN/index.rst
@@ -2,7 +2,7 @@
 FISCO BCOS 技术文档
 ##############################################################
 
-.. image:: _static/images/FISCO_BCOS_Logo_3.0.png
+.. image:: _static/images/FISCO_BCOS_Logo_3_0.png
 
 FISCO BCOS（读作/ˈfɪskl  bi:ˈkɒz/） 是一个稳定、高效、安全的区块链底层平台，其可用性经广泛应用实践检验。至今已超过4000家企业及机构、300+产业数字化标杆应用，覆盖文化版权、司法服务、政务服务、物联网、金融、智慧社区、房产建筑、社区治理、乡村振兴等领域。
 
diff --git a/_static/images/FISCO_BCOS_Logo_2.0.png b/_static/images/FISCO_BCOS_Logo_2_0.png
similarity index 100%
rename from _static/images/FISCO_BCOS_Logo_2.0.png
rename to _static/images/FISCO_BCOS_Logo_2_0.png
diff --git a/_static/images/FISCO_BCOS_Logo_3.0.png b/_static/images/FISCO_BCOS_Logo_3_0.png
similarity index 100%
rename from _static/images/FISCO_BCOS_Logo_3.0.png
rename to _static/images/FISCO_BCOS_Logo_3_0.png
diff --git a/_templates/layout.html b/_templates/layout.html
index 55eaa0dab..2f9d642fe 100644
--- a/_templates/layout.html
+++ b/_templates/layout.html
@@ -5,14 +5,14 @@
 {{ super() }}
 <br>
 <img style="background-color:#fff; height: unset; width: unset;" alt="FISCO BCOS" src={{
-        pathto("_static/images/FISCO_BCOS_Logo_2.0.png",1) }} />
+        pathto("_static/images/FISCO_BCOS_Logo_2_0.png", 1) }} />
 <a href="https://github.com/FISCO-BCOS"><img
                 style="background: transparent; padding: 0px; margin: auto auto auto auto; height: 30px;" alt="GitHub"
-                src="{{ pathto(" _static/images/github_button.svg", 1) }}" /></a>
-<a href="{{ pathto(" docs/community.html#QR", 1) }}"><img
+                src="{{ pathto("_static/images/github_button.svg", 1) }}" /></a>
+<a href="{{ pathto("docs/community.html#QR", 1) }}"><img
                 style="background: transparent; padding: 0px; margin: auto auto auto auto; height: 30px;" alt="微信群和公众号"
-                src="{{ pathto(" _static/images/wechat_button.svg", 1) }}" /></a>
+                src="{{ pathto("_static/images/wechat_button.svg", 1) }}" /></a>
 <a href="https://twitter.com/FiscoBcos"><img
                 style="background: transparent; padding: 0px; margin: auto auto auto auto; height: 30px;" alt="Twitter"
-                src="{{ pathto(" _static/images/twitter_button.svg", 1) }}" /></a>
-{% endblock %}
\ No newline at end of file
+                src="{{ pathto("_static/images/twitter_button.svg", 1) }}" /></a>
+{% endblock %}