Abstract: Considering that on-line shopping lacks some practical sifting methods to help buyers sift shopping goods, it studies the issue of designing a clothes sifting system and implementing it on the computer according to the principle of extension strategy generation. It uses extension methods to build an extension model for clothes shopping, discusses the main steps of the strategy generation of clothes sifting. The experimental results show that the clothes sifting system is effective.

Key words: Extenics; strategy generation; clothes; sifting