Using the centrifuge equipment, the contact crushing test of sandstone spherical particles was carried out, and the crushing morphology, cone-shaped core size and crushing rate were studied to explore the contact crushing characteristics of spherical particles under multi-point contact conditions. The crushing morphology of samples can be divided into two-block type and three-block type, in which the two-block type is the main type, and the multi-point contact is the necessary condition for the three-block type failure. Combined with the existing research results of single point contact crushing of spherical particles, the empirical formulas of cone-shaped core size and the empirical formula of crushing rate of spherical particles are established by the fitting method, and are validated by the test. It is found that increasing the number of contact points can effectively reduce the particle crushing rate under the same load.