The adhesive holding power tester is used for conducting adhesive holding power tests on products such as pressure-sensitive adhesive tapes, medical patches, self-adhesive labels, protective films, plasters, and babu pastes. The working principle is to vertically suspend the test board with the adhesive sample attached on the test frame, and suspend a specified weight of weights at the lower end. The ability of the adhesive sample to resist detachment is characterized by the displacement of the sample's adhesion after a certain period of time, or the time when the sample is completely detached.