The invention provides a taking-off and landing method of an aircraft and a device thereof, and belongs to the technical field of aviation. The taking-off and landing device comprises a fixed wing aircraft, a multi-rotor type aircraft and a multi-rotor type aircraft parking platform; the fixed wing aircraft is provided with a GPS navigation device, an inertia sensor, an infrared illuminator, a communication module and an adsorption plane; the multi-rotor type aircraft comprises a flight control computer, a multi-rotor inertia sensor, an infrared thermal imager, a multi-rotor GPS navigation device, a multi-rotor communication module, avacuum generator, a sucking disc, a connecting rod and a connecting rod vertical device. The multi-rotor type aircraft separates from the fixed wing aircraft after hoisting the fixed wing aircraft to lift off, and taking-off of the fixed wing aircraft is achieved; the multi-rotor type aircraft flies to midair and is combined with the fixed wing aircraft, and hoists landing of the fixed wing aircraft. According to the taking-off and landing method of the aircraft and the device thereof, the advantages of the multi-rotor type aircraft that the multi-rotor type aircraft can vertically take off and land and is flexible and mobile can be utilized, the fixed wing aircraft is in butt joint with the multi-rotor type aircraft, and the problem that a traditional fixed wing aircraft cannot vertically take off and land is solved.