The invention discloses a method and a system for controlling shifting in a vehicle corner and belongs to the field of shift control of an automobile gearbox. The method comprises the following steps: obtaining a left turn light signal, a right turn light signal, a steering wheel turn angle signal, a left front wheel rotating speed signal, a right front rotating speed signal, a left rear wheel rotating speed signal and a right rear wheel rotating speed signal by analysis of a CAN signal; performing comprehensive logic judgment to obtain any condition of corner entering picture of the vehicle, a corner process, a corner exiting process or linear running state; and selectively pre-shielding an upshift signal of a shifting MAP picture to improve the power performance and the running safety of the vehicle. By adopting the method and the system disclosed by the invention, the vehicle can pass through the corner rapidly when exits the corner; when in a condition that the road has a plurality of corners, over-fast heating of a clutch is prevented, so that the power performance, the safety and the driving experience of the vehicle are further improved.