The invention discloses an intelligent driving auxiliary control method. The method comprises the steps of obtaining the environmental parameters of the environment where a vehicle is located, whereinthe environmental parameters comprise one or more of the environmental temperature, the rainfall, the wiper gears, the rainfall duration, the illumination intensity and the headlight on-state; determining the risk category of the environment where the vehicle is located according to the environment parameters; controlling the vehicle intelligent driving assistance system according to the risk category, wherein the vehicle intelligent driving assistance system comprises an ACC and / or an AEB. Meanwhile, the invention further discloses the intelligent driving auxiliary control system. Accordingto the invention, a user can be reminded to reasonably use the intelligent driving assistance system, the intelligent driving assistance system is forbidden under the extreme weather conditions, compared with the existing driving assistance system, the safety level of the intelligent driving assistance system can be effectively improved, and no hardware cost is increased.