This article mainly introduces the Brinell hardness testing procedures from the technical requirements, testing items, testing equipment, testing methods, testing results and cycle. The metal Brinell Hardness Tester verification regulations can be used for the detection of newly manufactured, in-use and repaired fixed metal Brinell Hardness Testers. The Brinell hardness test method can be used for hardness testing of steel, non-ferrous metals and soft alloys. In addition, it can also be applied to the hardness testing of some non-metallic materials such as plastics and bakelite.