The initial tackiness tester is suitable for conducting initial tackiness tests on pressure-sensitive adhesive tapes, self-adhesive labels and other related products. The label initial adhesion tester complies with the GB 4852 (Test Method for Initial Adhesion of Pressure-sensitive Adhesive Tape - Inclined Plane Ball Rolling Method) standard. It adopts the principle of the inclined plane ball rolling method and tests the initial adhesion of the sample by the adhesion effect of the adhesive tape on the steel ball when the steel ball and the adhesive surface of the pressure-sensitive adhesive tape sample come into brief contact under a slight pressure. The maximum number of steel balls that can be adhered is used to characterize the initial adhesive performance of adhesive products.