The present application provides an evaporator, including a heat exchange tube set and a distribution device. The heat exchange tube set includes a plurality of heat exchange tubes. The distribution device is provided on one end of the length direction of the heat exchange tube set such that the distribution device can distribute a refrigerant through heat exchange tube inlets at the end portions of the plurality of heat exchange tubes. The distribution device includes a distribution device housing, at least one receiving port, and at least one distribution member. The receiving port is provided on the distribution device housing, and the distribution member is provided in the distribution device housing. The distribution device housing is disposed around the heat exchange tube inlets at the end portions of the heat exchange tube set and seals the heat exchange tube inlets. The distribution member can receive the refrigerant through the receiving port. The distribution member is provided with a plurality of distribution ports such that the refrigerant in the distribution member can be sprayed through the plurality of distribution ports towards the heat exchange tube inlets of the heat exchange tube set. The evaporator of the present application can uniformly distribute the refrigerant to the plurality of heat exchange tubes of the heat exchange tube set by using a simple structure, thereby effectively ensuring the heat exchange efficiency of the evaporator.