strange game end draw but not draw :/

You dont have sufficient material to mate him.

Happened once to me, but I was going to lose, but I'd win on time, When he ran out of time, the game decided it was a draw. ( he had a queen and a rook)

very funny, I detect humor hehehe

A rook and a king is sufficient material for a mate, especially with a pawn that is a future queen.

This typically happens either when you genuinely have insufficient material to mate, or when the person with the sufficient mating material runs out of time. Essentially, you got a draw rather than a loss on time because you had a winning position; if your opponent had run out of time, it would have been a win for you.

I guess I should post more detail. Yes, me have 29seconds and he no more.  I should win on time but game finish and draw :/

that was the case, he no more time.

here a link to game: http://www.chess.com/livechess/game?id=628210039

The player who ran out of time had material. He cant win, because he had no time.

The player who had time, ran out of material. He cant win either, because he had no material.

that's the rule?? then why have time control?

That sounds like a bug. You're only supposed to have a forced draw if the person who has sufficient material runs out of time. Otherwise your opponent should flag and lose.

that is what happend he had material but ran out of time, I had only King

Oh well, learn something every day.  Is this official rule?

Oh. I wasn't paying attention. If it was a draw when the side with material ran out of time, then yes, that's how this site works.

Yes, I believe this is an official rule, and that in a real tournament, the arbiter would make the same decision. 

In the position above, if white had a pawn left, he would get a win (on chess.com anyway) because in theory he could still win the game.

That's the reason ! The King can't checkmate the other one