Objective To assure whether this new denture adhesive is acute toxic or not. Method 20 Kunming?species small rats were selected. Observe the general conditions of these rats after making them taken orally 0.8ml/20g sample then autopsy them. Result All of the rats were normal. Conclusion The maximal tolerant dose(MTD) of this material to small rats is more than 16g/kg, which means this new denture adhesive is not acute toxic.