Abstract: Because of high costs of field test and difficulty to do destructive test, the indoor model test of karst area rock-socked pile to study on bearing capacity is necessary.Through the simplification for the system of rock-socked pile and bedrock, two test schemes of integrated model and central symmetry model were put forward.comparing with the field test, the model test results showed that the two schemes were feasible to simulate actual projects.Through comparing with the test results, the difficult degree of practical operation, and economic indexes, the central symmetry model test scheme was recommended．