How Create Custom Blog Tab In WordPress Dashboard

You will need to create a child theme and add functions to the site https://codex.www.ads-software.com/Adding_Administration_Menus
https://code.tutsplus.com/tutorials/creating-custom-admin-pages-in-wordpress-1–cms-26829

Hello, Please Guide me how to do this, I want blog tab and same as Post tab for posting.

Thanks

Do you want to change the name of Post to Blog or add another menu item?

This is more of a development question and should be asked in the Developing with WordPress forum. The above tutorial will guide you through the steps.