Low-power-consumption control method and system suitable for internet-of-things control chip

The embodiment of the invention discloses a low-power-consumption control method and system suitable for an internet-of-things control chip. The method comprises the following steps: if a receiving channel of an Internet of Things control chip does not receive a data task within a specified time a1, transmitting a task inquiry signal to a power distribution terminal; monitoring whether a response signal fed back by the power distribution terminal is received within specified time a2 or not, and if not, generating and transmitting a first trigger signal to a switch power supply to trigger the switch power supply to control the Internet of Things control chip to enter a power-down state, if the response signal is not responded and an output channel of the Internet of Things control chip does not output signals within specified time a3; if the response signal is received, setting a low-power-consumption control mode based on a pre-negotiated suspension rule to obtain mode control information; and a control signa