The invention discloses a vehicle suspension set height adjustment control method based on a CAN bus. The control method comprises steps that a first measurement value acquired by an angle displacement sensor and a second measurement value acquired by an oil source pressure sensor are read in real time, the first measurement value and the second measurement value are correspondingly converted into suspension set height data and oil source pressure data respectively, the suspension set height data and the oil source pressure data are displayed to a user through a man-machine interface, a control instruction and control parameters inputted or selected by the user based on the suspension set height data and the oil source pressure data are received through a CAN bus mode, and motion of a solenoid valve is controlled according to the control instruction and the control parameters. The relevant information of vehicle suspension set height adjustment can be comprehensively and effectively acquired, the user is guided to correctly input or select the control instruction and the control parameters, and height adjustment control on the vehicle suspension set is lastly realized. The method further has advantages of strong reliability and high safety.