Abstract:The point load test is a relatively simple method for measuring the compressive strength of rock, which has been widely used since it was recommended by the International Association of Rock Mechanics. In order to explore the correlation between the compressive strength determined by point load test, a large number of point load and uniaxial compressive strength tests were carried out with dolomite in a large mine shaft project as the research object. The accuracy of the test results was tested by normal distribution, and the influence of specimen size on the standard value of point load strength was discussed. Finally, the standard value of point load strength and uniaxial compressive strength are analyzed by linear fitting, which shows that there is a high positive correlation between them. That is to say, the compressive strength value can be converted to each other, which can provide the basis for the design parameters of the mine.