A standby power consumption control device for lighting system, the standby power consumption control device comprising a power factor correction module; a first functional module for assisting in improving a power factor, the first functional module being connected to an output end of a rectifier module of the lighting system and electrically connected to the power factor correction module; a second functional module for assisting in improving a power factor, the second functional module being electrically connected to an output end of the power factor correction module; wherein the standby power consumption control device further comprises a control module electrically connected to the first functional module, the second functional module, and the power factor correction module; the control module is configured to control the first functional module, the second functional module, and the power factor correction module to be synchronously turned on or off according to the working state of the lighting system characterized in that the control module is composed of a comparator, a first input end of the comparator being connected to a transformer at the rear end of the power factor correction module to obtain a comparison value, and a second input of the comparator being configured to receive a reference value selected according to electrical information at a connection point between a first input end of the control module and the transformer in different working states of the lighting system, the comparison value being different depending on the working state of the lighting system; wherein the control module is configured such as to: when the voltage level at the rear end of the transformer is higher than the reference voltage, the first functional module, the second functional module, and the power factor correction module are turned on, and when the voltage level at the rear end of the transformer is lower than the reference voltage, the first functional module, the second functional module, and the power factor correction module are turned off. a power factor correction module; a first functional module for assisting in improving a power factor, the first functional module being connected to an output end of a rectifier module of the lighting system and electrically connected to the power factor correction module; a second functional module for assisting in improving a power factor, the second functional module being electrically connected to an output end of the power factor correction module; wherein the standby power consumption control device further comprises a control module electrically connected to the first functional module, the second functional module, and the power factor correction module; the control module is configured to control the first functional module, the second functional module, and the power factor correction module to be synchronously turned on or off according to the working state of the lighting system characterized in that the control module is composed of a comparator, a first input end of the comparator being connected to a transformer at the rear end of the power factor correction module to obtain a comparison value, and a second input of the comparator being configured to receive a reference value selected according to electrical information at a connection point between a first input end of the control module and the transformer in different working states of the lighting system, the comparison value being different depending on the working state of the lighting system; wherein the control module is configured such as to: when the voltage level at the rear end of the transformer is higher than the reference voltage, the first functional module, the second functional module, and the power factor correction module are turned on, and when the voltage level at the rear end of the transformer is lower than the reference voltage, the first functional module, the second functional module, and the power factor correction module are turned off.