The invention discloses a medical atomizer. The atomizer comprises an atomizer body, a catheter, a telescopic breathing mask, gas flow regulating valves, a microcontroller chip and a touch control display screen; the catheter is arranged between the atomizer body and the breathing mask and used for conveying generated gas into the human body through the catheter and the breathing mask; the gas flow regulating valves are all arranged on the catheter, the control ends of the gas flow regulating valves are connected with the output end of the microcontroller chip, and the data transmitting end of the touch control display screen is connected with the data transmitting end of the microcontroller chip; the touch control display screen receives flow regulating signals and transmits the signals to the microcontroller chip, and the microcontroller chip controls the gas flow regulating valves according to received signals. The medical atomizer is simple in structure and convenient to operate, can effectively control the gas flow and accordingly guarantees the use comfort of patients and treatment effects.