- Go to Settings > Search preferences > Meta tags > Description and click the Edit link.
- Choose "Enable Search Description?"
- Enter the meta description for your blog in no more than 150 characters.
- Click Save Changes
Meta description is won't work correctly in custom templates, therefore we need to insert some code inside the template.
- Go To Design > Edit HTML
- Backup your template
- Just below <head> add the following code for meta description
<b:if cond='data:blog.metaDescription != ""'>
<meta expr:content='data:blog.metaDescription' name='description'/>
</b:if>
- Save your template.
Adding Meta Description To Each Post Or Pages
Open your Blogger post editor,then you will see a new option for Search description
Click the Search Description on right side and enter the small description about your post.
Enjoy !