diff --git a/_pages/about-slides.md b/_pages/about-slides.md
index 6b9b53e..f6b8b7b 100644
--- a/_pages/about-slides.md
+++ b/_pages/about-slides.md
@@ -28,3 +28,6 @@ date: 2017-06-20T11:02:20+08:00
 
 ## [ServiceComb live streaming phase V](http://www.itdks.com/liveevent/detail/6623), 20171207
  * [Uncover ServiceComb Design]({{ site.url }}{{ site.baseurl }}/assets/slides/20171207/Uncover_ServiceComb_Design.pdf)
+
+## [ServiceComb live streaming phase VI](http://www.itdks.com/liveevent/detail/6624), 20171221
+ * [ServiceComb\'s Data Consistency Solution]({{ site.url }}{{ site.baseurl }}/assets/slides/20171221/data.consistency.live.pdf)
diff --git a/_pages/cn/about-slides.md b/_pages/cn/about-slides.md
index 606cf60..ef88bba 100644
--- a/_pages/cn/about-slides.md
+++ b/_pages/cn/about-slides.md
@@ -28,3 +28,6 @@ date: 2017-06-20T11:02:20+08:00
 
 ## [ServiceComb 直播第五期](http://www.itdks.com/liveevent/detail/6623), 20171207
  * [ServiceComb设计揭秘]({{ site.url }}{{ site.baseurl }}/assets/slides/20171207/Uncover_ServiceComb_Design.pdf)
+
+## [ServiceComb 直播第六期](http://www.itdks.com/liveevent/detail/6624), 20171221
+ * [ServiceComb的数据一致性]({{ site.url }}{{ site.baseurl }}/assets/slides/20171221/data.consistency.live.pdf)
diff --git a/assets/slides/20171221/data.consistency.live.pdf b/assets/slides/20171221/data.consistency.live.pdf
new file mode 100644
index 0000000..852467c
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