A high intelligent temperature test system is proposed. The digital temperature test sensor DS1820 is applied as a temperature test sensor, AT89C2051 SCM is the center part of the system. All designs of project, hardware circuit and software of this system are made. The temperature test on Multi-points is achieved at the same time. The experiments show that this system is characterized by high intelligence, high-precision, capability of making temperature test on multi-points and compensating function. The method has a good applicable value to the temperature test.