The utility model discloses a bearing base plate for rock testing. The bearing base plate mainly comprises a table-type bearing base plate main body and a receiving plate trough circling the bearing base plate main body, wherein a positioning and mounting hole used for mounting the bearing base plate on a rock tester loading base is formed in the lower end surface of the bearing base plate main body; and the receiving plate trough is used for receiving a permeable aqueous medium leaked in the permeability test of rock test blocks and scraps generated by broken rock test blocks in the compression test process. The bearing base plate avoids adverse effects on test equipment, which are caused by water leakage and rock test block breakage during permeability test and compression test of rock test blocks on a rock tester in the prior art, protects a measurement and control sensor mounted on the rock tester loading base and improves convenient and quick cleaning of the triaxial pressure chamber of the rock tester.