is china still a socialist market economy ?

What are your criteria?

I doubt that there are two people in the world who would agree on just what a socialist market economy would be and where the boundaries are.

On the other hand, if you are using the Chinese definition, then, by definition, they are and will be as long as they want to be. (They are because their definition is that "socialist market economy" is the the official Chinese name for the type of economy of China - no objective criteria need apply)
http://en.wikipedia.org/wiki/Socialist_market_economy

Yeah
they actually started out being , or trying to be a full communist economy, but they saw that that didnt work and went to a more socialist economy which they are still in , eventually they will probably become a capitalist economy. This transformation is actually the reverse of what Karl MArx ,the father of communism, predicted. He said states would start out having capitalist economies shift to socialism and then eventually communism out of neccessity.