The invention discloses a washing machine sewage recycling device based on the combined purification of adsorption and foam. The device comprises a box body, a foam generator is arranged at the bottomof the box body, and a water inlet port and a water outlet port are formed in a side wall; the water inlet port of the box body is sequentially connected with a third electromagnetic three-way valve,a first water pump, a second electromagnetic three-way valve, a turbidity detector, a device controller, a plush filter and a washing machine water outlet through a duct; the other port of the thirdelectromagnetic three-way valve and an inlet end of an activated carbon filter is connected, and the outlet end of the activated carbon filter is connected to a water inlet of a washing machine through the first electromagnetic three-way valve; a box body drain port comprises a first drain port and a second drain port in the side wall of the bottom of the box body, and the second drain port is connected with a second water pump, and then is connected with the inlet end of the activated carbon filter; the box body is provided with a mesh bubble breaker and a bubble liquid collecting device. The device can efficiently achieve the recycling of water and the recycling of detergents, and the service life of the device is prolonged.