Does traffic has correlation with search engine ranking?

[montyauto]

To increase search engine ranking, we need to take care on metatag, look for quality link partner, keywords in paragraph, quality related info, smartpage..

But some one say that if our website traffic increase, search engine ranking will increase as well.

Will that be true?

[MtraX]

Having a good ranking will mean better traffic (depending on the demand on the keyword you're looking at). Having alot of traffic will not necessarily mean better ranking, but in some cases it does have an effect (pull marketing). If a topic's hot and you're the only one with the content you're gonna rank, whether the page is brand spanking new or not.

I would suggest you do some more reading on SEO before you go SEO'ing your website. Remember it's not a magic bullet and it's a long term strategy...