The invention belongs to the field of forest fire prevention equipment, and particularly relates to a helicopter fire-fighting pod for forest fire prevention. The helicopter fire-fighting pod comprises a lifting mechanism and a pod body, the pod body is connected with the lifting mechanism through a lifting rope, the pod body structurally comprises a square groove, two side overturning plates, a floating plate, an upper cover and a soft liner, the square groove is of a rectangular structure, the four vertical edges of the square groove are of the same height, the two side overturning plates are hinged to the two short vertical edges of the square groove correspondingly, the floating plate is made from lightweight materials with the density less than that of a fire extinguishing agent, bending parts bending inwards are arranged on the upper side edges of the side overturning plates, and the bending parts hook the upper cover to prevent the upper cover from coming out from the position between the two side overturning plates. According to the helicopter fire-fighting pod for forest fire prevention, the floating plate is arranged in the pod body, flowing of the fire extinguishing agent can be effectively controlled in the transportation process of a helicopter, the change of the center of gravity of the pod body caused by flowing of the fire extinguishing agent is avoided, thus the potential safety hazard in the flight is eliminated, and the technical requirements for a pilot are lowered.