Quasi-zero power consumption standby control circuit device

The utility model discloses a quasi-zero power consumption standby control circuit device. The device which is arranged between a power supply and electrical equipment includes a main power source, an auxiliary power source and a main control chip; an input end of the main power source is directly connected to the power supply, and an output end of the main power source is connected to the main control chip to provide power to the main control chip; an input end of the auxiliary power source is connected to the power supply through a control switch, an output end of the auxiliary power source is connected to a load in the electrical equipment; and a first control end of the main control chip is connected to the control switch to control the connection and disconnection of the control switch. A high-power load circuit is independently powered up such that a small-capacity power source can be adopted as the main power source, and high efficiency can be maintained when a circuit is in a light-load state, the load of the main power source is very small in a standby state, thereby realizing an ultralow-power consumption standby state.