Abstract: Using the ratio of RSR(rank sum ration) and statistical methods, the paper analyzes the basic situation and competition capacity of 97 foreign CBA players with the result indicating the they are characterized by their admirable height, bigger Quetelet indexes but senior ages. American players constitute the larger part with more mobility and more forwards and defenders than centers. There are Class A foreign players with outstanding individual ability but only a few( 4-8), mainly C and D players. Players of Class A and B with ordinary comprehensive abilities reach only 6-9 in each position with players of Class B taking up the main part.

Key words: CBA, foreign players, competition ability, RSR