The invention discloses a finger force practice tray of a musical instrument. A pull rope is arranged at one side of a shell; more than five groups of finger slots are distributed in the shell by equal spacing; shiatsu plates are arranged in the finger slots; the sides, close to the shiatsu plates, of a bottom cover are connected to one end of an electric telescopic rod; a supporting plate is connected to the other end of the electric telescopic rod; a pressure sensor is arranged at the upper side of the supporting plate; a locating pillar is arranged at the side, close to the pressure sensor,of the supporting plate, a spring is arranged in the middle of the locating pillar; the side, away from the locating pillar, of the spring is connected to the shiatsu plates; through stretching of the electric telescopic rod, the supporting plate, which is connected, is pushed to move, and along with the moving of the supporting plate, the spring undergoes pressing stretching, so that pressing force can be adjusted in accordance with different human fingers; and through cooperation of sliding platforms and connecting bosses, which are arranged at two sides of the shiatsu plates, with a sliding shaft in use, the stability of the pressing force can be guaranteed.