A semi-automatic fingerstall sealing machine can improve the production efficiency of sealing fingerstalls, enable the speed of the sealing fingerstalls to meet production needs, lower labor intensity, and reduce labor cost and production cost. The semi-automatic fingerstall sealing machine comprises a rack, a folded plastic film material roll is arranged at the front end of the rack, and a plastic film driving device, a half-pressing device, an opening knife and a full-pressing device are sequentially arranged on the rack from front to back. The plastic film driving device consists of two driving rollers and a driving motor, wherein the driving rollers are tightly arranged on the rack up and down, and the driving motor is arranged on the rack and connected with one driving roller. The half-pressing device and the full-pressing device each consists of a top plate, sliding rods, springs, a connecting plate, a motor and an electric heating knife, wherein the sliding rods are fixedly arranged on the two sides of the top plate and connected with the rack in a sliding mode, the sliding rods are sleeved with the springs located on the upper portion of the rack, the connecting plate is arranged at the ends, penetrating out of the rack, of the sliding rods, the motor is arranged at the bottom of the rack and connected with the connecting plate through a crank and rocker mechanism, and the electric heating knife is arranged at the bottom of the top plate and above the rack.