Refrigeration equipment and defrosting method thereof

The invention provides refrigeration equipment and a defrosting method thereof. The refrigeration equipment comprises a refrigerant circulating flow path and a waste heat defrosting circulating flow path. The waste heat defrosting circulation flow path comprises a heat exchange pipe, a first pressure adjusting component, a second pressure adjusting component and a pump body. Phase-change microcapsule suspension liquid is arranged in the heat exchange pipe and comprises phase-change microcapsules, and core materials of the phase-change microcapsules comprise plastic crystal materials; the heat exchange tube comprises a heat storage section and a heat release section, the heat storage section is located on the compressor, and the heat release section is located on the heat exchanger; in the flowing direction of the phase change microcapsule suspension, the first pressure adjusting component is located on the upstream side of the heat storage section, the second pressure adjusting component is located on the ups