The utility model discloses a test tool for testing the performance of a rubber sleeve, which relates to the field of underground tool test tools in the petroleum industry and comprises a pressure-bearing joint, a casing nipple, a mandrel, an upper protective ring, a lower protective ring, a support ring, a lower joint, a baffle ring, a locking screw and a high-temperature heat tracing band, the tool provided by the utility model can be used for testing the setting performance and the sealing performance of the rubber sleeves of the bridge plug and the packer under the condition of simulatingthe temperature and the pressure of a real stratum, and is simple in structure, diverse in function, simple and convenient to operate and accurate in performance test of the rubber sleeves.