The invention discloses a side parking method and system, and belongs to the field of vehicular active safety. The method is used for a side parking system, and comprises: acquiring vehicle state information of a current vehicle, wherein the vehicle state information comprises position information of the current vehicle in a parking environment and position information of a target parking plot; determining a discrete parking running path according to the vehicle state information by adopting a machine learning algorithm; performing curve fitting on the discrete parking running path to obtain a target parking running path; and controlling the current vehicle to accomplish side parking according to the target parking running path. The method solves the problems of low stability and low flexibility of a side parking system, and achieves the effects of improving the stability and the flexibility of the side parking system. The method and the system are used for side parking.