diff --git a/2.x/en/index.rst b/2.x/en/index.rst
index 37eaf51d1..005da23a9 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.svg
+.. 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 64ffd7bac..4708e4279 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.svg
+.. 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
new file mode 100644
index 000000000..009889ec6
Binary files /dev/null and b/3.x/_static/images/FISCO_BCOS_Logo_3.0.png differ
diff --git a/3.x/_templates/layout.html b/3.x/_templates/layout.html
index 4c9879626..57fb7cab3 100644
--- a/3.x/_templates/layout.html
+++ b/3.x/_templates/layout.html
@@ -1,15 +1,18 @@
{% extends "!layout.html" %}
-{%- if pagename == '404' %}{% set metatags = '\n ' + metatags %}{% endif %}
+{%- if pagename == '404' %}{% set metatags = '
+\n ' + metatags %}{% endif %}
{% block sidebartitle %}
{{ super() }}
-
-
-
-
-{% endblock %}
+
+
+
+
+{% endblock %}
\ No newline at end of file
diff --git a/3.x/zh_CN/index.rst b/3.x/zh_CN/index.rst
index 47257502d..0773b25c0 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.svg
+.. 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
new file mode 100644
index 000000000..3366b4827
Binary files /dev/null and b/_static/images/FISCO_BCOS_Logo_2.0.png differ
diff --git a/_static/images/FISCO_BCOS_Logo_3.0.png b/_static/images/FISCO_BCOS_Logo_3.0.png
new file mode 100644
index 000000000..009889ec6
Binary files /dev/null and b/_static/images/FISCO_BCOS_Logo_3.0.png differ
diff --git a/_templates/layout.html b/_templates/layout.html
index 4c9879626..55eaa0dab 100644
--- a/_templates/layout.html
+++ b/_templates/layout.html
@@ -1,15 +1,18 @@
{% extends "!layout.html" %}
-{%- if pagename == '404' %}{% set metatags = '\n ' + metatags %}{% endif %}
+{%- if pagename == '404' %}{% set metatags = '
+\n ' + metatags %}{% endif %}
{% block sidebartitle %}
{{ super() }}
-
-
-
-
-{% endblock %}
+
+
+
+
+{% endblock %}
\ No newline at end of file