It is suitable for the hardness measurement of cement-based wear-resistant floor systems, penetrating liquid hardening floor systems, cement-based self-leveling floor systems, resin monolithic surface floor systems and ordinary concrete floor systems. The principle of this product is to apply a certain test load to a steel ball of a certain diameter and press it into the surface of the floor to be tested. After a specified holding time, the test load is removed and the diameter of the indentation on the surface of the floor to be tested is measured. This product has the characteristics of novel appearance, simple operation and accurate test results.