Air conditioner auxiliary automatic humidity regulating device with follow-up switch function

The utility model provides an air conditioner auxiliary automatic humidity regulating device with a follow-up switch function, which includes a follow-up switch circuit module (301) and an intelligent humidifying circuit module (302), wherein the follow-up switch circuit module (301) includes a 220V industry frequency AC power supply module (303), an air conditioner electrical socket module (304), a current transformer module (305), a rectifying and wave-filtering circuit module (306), a signal sampling circuit module (308) and a comparison circuit module (307); and the intelligent humidifying circuit module (302) includes a single chip module (310), an A/D converting module (312), a humidity sensor module (311), an LCD module (316), a relay module (313), a piezoelectric ceramic transducer module (314) and a humidity setting button (315). Whether the air conditioner operates can be judged by detecting the intensity of the current of the air conditioner power cord. When the air conditioner operates, the presen