how spider movement can be achieved to make robot climb stairs?

Answer 1

You are talking about a major project which would probably be considered graduate or doctoral work in college. You'll need to have a working knowledge of servos, optical recognition, micro-controllers and you'll need to do some advanced programming. It's definitely not a weekend project for one person.

Answer 2

Shoulda ******** killed it dish!t. now u know there's a big spider running around your house and u have no idea where it is. spiders can pretty much climb anything. stairs walls tables chairs beds