The invention relates to an automobile ventilation control device and a control method of the automobile ventilation control device. The automobile ventilation control device comprises an air conditioner, wherein the air conditioner is arranged in an automobile, an air conditioner control panel used for controlling the air conditioner is arranged on the air conditioner, a filter element is arranged in the air conditioner, the automobile ventilation control device also comprises an on-line particle monitor, a server, an intelligent communication device and a ventilation controller in mutual connection, wherein the on-line particle monitor is connected with the server through a wireless network, the server and the intelligent communication device are in interactive connection through a wireless broadband network, the intelligent communication device is connected with the ventilation controller in a wireless mode, and the ventilation controller is connected with the air conditioner control panel through a cable wire. The automobile ventilation control device and the control method of the automobile ventilation control device have the advantages that ventilation equipment such as the air conditioner in an automobile can be timely and automatically switched according to the air quality inside and outside the automobile, the efficient ventilation and air change are realized, and the effect of preventing outside severe air from polluting the inside of the automobile is fully guaranteed, so that fresh air enters a cab, the air in the automobile keeps clean and healthy, the real-time guarantee on the breathing health of people is realized, and the automobile ventilation control device and the control method are suitable to be popularized and used in relevant transportation equipment.