The invention discloses a vomit collection device with a function of adjusting the clapping force intensity for medical care. The device comprises a C-shaped rack, a collection case, a water tank, a frame body, an incomplete gear, a complete gear, a clapping board, a collection funnel, a water pipe and a faucet, and the frame body is arranged on the lower portion of an upper side wall body of the C-shaped rack; the clapping board swings back and forth to clap the back of a patient who feels like vomiting and reduce the pain of the patient, the faucet is opened, then water flows out, and the patient conducts cleaning such as gargling conveniently; meanwhile, vomit matters which are vomited by the patient into the collection funnel are convenient to wash, can enter the collection case and are collected conveniently, so that the environment is prevented from being polluted by the vomit matters; by adjusting pretightening adjustment nuts, pretightening force of spiral springs can be adjusted, accordingly when the clapping board claps the back of the patient, the clamping force can be controlled within a certain force intensity range, the situation is avoided that the patient feels uncomfortable when the force intensity is excessively large, and by adjusting position adjustment nuts, the interval between the clapping board and a swing board can be adjusted conveniently.