
How To Enable And Add Meta Description :
Blog Meta Description - This is a description of your entire blog.You use this to describe your entire blog to search engine.
1. Go To Blogger Dashboard >>Setting>>Search Preferances>Meta tags>Description and Click Edit Link.(See Below Demo Image)

2. Enter the Meta Description for your blog.This meta description will appear on your homepage and other multi-post pages.
3. Click Save Changes Button.
Adding Meta Description To Individual Pages :
Post Meta Description - This is a description added to every individual post on your blog.You use this to tell search engine what each post is about.
1. In your post editor see right side panel under Post Setting click search description option.(This option appear only after the enable search description step 1).

2. Enter the Meta Description for the Post and Click Done.
For older post,you have to go back to edit each post and manually add in the description.
How To Verify Your Meta Description :
You can Verify your meta description by using this free meta tag checker tools.
More Troubleshooting :
If none of the meta description appear,chance are your template does not contain the necessary code to important the meta description from Blogger database.
1. Go To Blogger Dashboard>>Tamplate>>Edit HTML and Find the following code.
<b:skin><![CDATA[
2. And Paste the Following Code before/above <b:skin><![CDATA[
3. And Verify Again.I just hope this tutorial would be helpfull for all of you.the step are extremly simple and easy.Wich you all the best with your blogging endevors.Happy blogging.If You Face any problem and trouble plz comments in below post.Share With Your Friends Thsi Post.
1. Go To Blogger Dashboard>>Tamplate>>Edit HTML and Find the following code.
<b:skin><![CDATA[
2. And Paste the Following Code before/above <b:skin><![CDATA[
<b:if cond='data:blog.metaDescription != ""'>
<meta expr:content='data:blog.metaDescription' name='description'/>
</b:if>