Abstract: In this paper, radial basis function networks and partial least sq u are regression were depicted first, and then the computer aided quality evaluat ion model of frozen swimming crab was founded by the RBFN-PLSR approach. The r esults indicated that it showed good method of applying the model to evaluate t he quality of frozen swimming crab.

Key words: swimming crab, computer aided, quality evaluation model, radial basi s function networks, partial least square regression