The invention discloses a gear shifting oil pressure regulating system. The gear shifting oil pressure regulating system is used for an automatic transmission gearbox and comprises a hand-operated valve, a clutch, a gear shifting valve, an oil return pipeline and a throttling device, wherein the hand-operated valve is used for switching over gears of the automatic transmission gearbox; the clutch is used for controlling the automatic transmission gearbox to be connected with or disconnected from an engine and is connected with the hand-operated valve; the gear shifting valve is connected with the hand-operated valve through a first pipeline and is connected with the clutch through a second pipeline; the oil return pipeline is communicated with the hand-operated valve and the clutch; the throttling device is arranged on the oil return pipeline. According to the gear shifting oil pressure regulating system provided by the invention, through the arrangement of the throttling device, the shock phenomenon which is generated when the automatic transmission gearbox is changed from a D/R gear to a P/N gear is obviously reduced; since the size of the throttling device adopted by the gear shifting oil pressure regulating system is small, the throttling device cannot occupy too much space during arrangement, the structure is simple, the use is convenient, and the problem in the prior art that the occupied space of an energy accumulator is too large can be well solved.