The invention discloses a shuttle vehicle feeding and discharging mechanism. The shuttle vehicle feeding and discharging mechanism comprises a first driving mechanism and a propelling mechanism, the first driving mechanism drives the propelling mechanism to move forwards or backwards, and the second propelling mechanism comprises a second driving mechanism and a belt mechanism and drives the beltmechanism to rotate. In feeding, the first driving mechanism drives the propelling mechanism to move forwards, the propelling mechanism is upwards warped to push up goods, then the second driving mechanism drives a belt to rotate, so that the goods are pushed to the center of the belt, then the propelling mechanism moves backwards, and the goods return to a shuttle vehicle. In discharging, the first driving mechanism drives the propelling mechanism to move forwards, then the propelling mechanism is warped upwards, then the second driving mechanism drives the belt to rotate, so that the goods are conveyed to a goods shelf from the belt mechanism, and then the propelling mechanism moves backwards and returns to the original position. According to the shuttle vehicle feeding and discharging mechanism, the structure is simple, automatic feeding and discharging of the shuttle vehicle can be achieved, the automation extend is high, a manipulator does not need to be arranged for assistance, the cost is saved, the site is saved, and thus a warehouse is tidier.