Baby choking can take Heimlich maneuver. Heimlich first aid method for tracheal foreign body caused by choking is effective, the specific method of operation for the operator sitting in a chair, the baby lying on the operator’s lap, a hand will be the baby’s face slightly lifted, the other hand on both sides of the shoulder blades, to do forward and upward patting action, each time 1-5, the strength needs to be appropriate. The principle of the Heimlich maneuver is that by rapidly impacting the baby’s abdomen, an upward pressure is generated, compressing the lower part of the baby’s two lungs, thus driving the residual air in the lungs to form a stream of air, which can expel the foreign body. Promoting the popularization of the Heimlich maneuver is the first step in the knowledge of first aid, which can effectively reduce the incidence of delayed resuscitation due to choking. However, if there is no relief after the Heimlich maneuver, it is important to go to the hospital as soon as possible.