Clasp wire is one of the important components in partial denture acrylic which serves as  a  retention. After the use of denture everyday, patient is advised to always clean it. Cleaning of denture by immersing in a solution of denture cleanser which containing organic acids in long term may be  cause corrosion. While corrosion can resulted changes in mechanical properties, among others, a reduction in tensile strength of stainless steel. The purpose of this research is to investigate the influence of immersion clasp wire of  stainless steel  on denture cleanser solution to its tensile strength and to know how far the influence of  quality of  clasp wire of stainless steel  on the market  for its tensile strength. Method is laboratory experimental  (double-blind), the study is 3 brands of stainless steel wire with a diameter of 0.6 mm on the market (good quality, medium and low), the specimen was 30, then each group was divided into 2 groups again based on  type of treatment, which is immersed in a solution without a denture cleanser and   for 7 days at room temperature (28ºC) and  same volume. Measurement of  tensile strength was performed with a Universal Testing Machine. The ANOVA test (p<0.05) obtained tensile strength significantly different group of good quality with moderate and low groups, while the test results the T-test (p<0.05) tensile strength values obtained no significant difference between the immersed without denture cleanser  and with denture cleanser.