Abstract: The electroosmotic dewatering method is a new typical technology in soybean productions , especially in bean curd skin.In this paper, we study the dewatering efficiency of tofu by using DC electroosmotic dewatering, different pulse-time electric fieldelectroosmotic dewatering and weight pressure. We found that compared to the others,the method of different pulse-time electric fieldelectroosmotic dewatering is the best. And what’s more,the dewatering efficiency will increase if we increase the voltage.

Key words: electroosmosis, dewatering, different pulse-time electric field, bean curd skin