Rock point load tester is a kind of testing instrument suitable for construction site. The point load test has low requirements for the preparation of rock samples, which can be either core samples for engineering exploration or irregular samples with slight trimming. The sample preparation does not need special machining. Compared with the conventional test, it has the characteristics of fast test speed, short test cycle, simple method and low cost. It can be widely used in the field test of construction projects such as geology, mining, hydropower, railway and transportation.