Abstract: The Shanghai Synchrotron Radiation Facility (SSRF) is a third-generation synchrotron radiation source with an energy of 3.5 GeV. The superconducting radio frequency cavities have been used to compensate the energy dissipation during synchrotron radiation. A 500 MHz superconducting niobium cavity which adopts the one side fluted beam pipe for higher order modes propagation has been developed to provide support for the operation of SSRF. To make sure this superconducting cavity can be used as a substitution in SSRF, it is necessary to complete the horizontal test after the vertical test was completed successfully. The cavity have been assembled into the cryogenic module with high-power input couplers, high-order mode absorbers, etc.This paper presents the development and installation process of horizontal test module. The high power test of the superconducting cavity have been performed and the static heat loss of the superconducting cavity cryogenic module have been calculated by Venturi tube calibration method. The results show that the performance of 500 MHz superconducting cavity developed by Shanghai Institute of Applied Physics exceeds the working needs of SSRF. When the cavity accelerating voltage of the superconducting cavity is up to 2 MV, the unloaded quality factor Q₀ is 1.2×10⁹ at 4.2 K, and the static loss power of the cryogenic module is 36.1 W. The horizontal test for the 500MHz superconducting cavity have been completed in Shanghai Institute of Applied Physics (SINAP).