Display cabinet controller

The utility model relates to a display cabinet controller which comprises a temperature sensor arranged in a display cabinet; the temperature sensor is used for sending acquired temperature signals into a micro-programmed control unit (MCU); the MCU is used for comparing the temperature signals with the preset value, and then outputting a refrigeration signal into a work circuit of a refrigeration relay; the MCU is also connected with a clock module which is used for sending the current time into the MCU; and a work circuit of a defrosting relay, a work circuit of a fan relay, a control circuit of a lighting relay and a work circuit of an anti-dew relay are started by the MCU at the fixed time. After the technical scheme is adopted, omnibearing control is provided for the display cabinet.