The invention discloses a vehicle air quality adjusting system and method based on an intelligent cell-phone. The vehicle air quality adjusting system comprises the intelligent cell-phone and a car-mounted adjusting terminal; the car-mounted adjusting terminal comprises a mounting seat which adapts to a car-mounted environment, and an airflow channel switching device and a plurality of spice containing cavities are formed in the mounting seat; and the airflow channel switching device receives an adjusting command of the intelligent cell-phone and achieves switching of an airflow channel, so that different spice containing cavities can be connected into the airflow channel, and adjusting of air scent is achieved. The vehicle air quality adjusting system and method based on the intelligent cell-phone have the effects that under the situation that a vehicle body structure is not modified, only the car-mounted adjusting terminal is additionally arranged, control is conducted by using the intelligent cell-phone, and the spice with different scents can be added into the car-mounted adjusting terminal; and in the air quality adjusting process, corresponding scents can be selected to diffuse according to preferences of users, the intelligent degree is high, the user experience feeling is high, and the vehicle property and the comfort of drivers are improved effectively.