How to tell Google a webpage has moved?

[Maxwell]

Hello,

I have 2 urls on top google keywords but because some reasons I must migrate them into one.
I do not want the new my page to be penalized for duplicate content, I want it to naturally under Google's eyes.
How do we tell Google my webpage has moved?

Any suggestions?

 

[Deepak Kaushik]

You can create a URL removal request in Google Webmaster Tools. After sometime, Google will remove your Link.

 

[cps31]

Just do the 301 permanent redirection so that Google will not count your old link anymore and new link will be indexed.