In our daily life, the most common diseases that require first aid are the following: sudden death, shock, angina attack, myocardial infarction, hypoglycemia, traumatic fracture and other diseases. Sudden death first aid method is to make the patient lying down, supine position, the rescuer hands crossed vertically press the patient’s chest, the specific location is the midpoint of the bilateral nipple line, the pressure amplitude should be greater than 5 cm, the pressure frequency is greater than 100 times per minute, every 30 times to stop for the patient to mouth-to-mouth artificial respiration two times, and so on and so forth, don’t forget to find the sudden death of the patient should immediately dial 120. shock should be allowed to the patient. Patients lying down position, you can put the patient double lower limbs elevated to ensure blood supply to the brain, encourage patients to drink more water. Angina attack should immediately let the patient rest on the ground, can be given nitroglycerin sublingualization, 5-10 minutes of symptoms are not relieved can be contained again a piece of nitroglycerin. The principle of myocardial infarction is the same as angina pectoris, and if sudden death occurs, the resuscitation is carried out according to the method of sudden death. Hypoglycemic attack should be immediately given sugar water, sugar cubes orally, if there is no sugar water and sugar cubes on hand, steamed bread, bread can also be. Trauma fracture patients, let the patient lie flat, limb fracture parts temporarily do not reset to avoid secondary injury, can be used to board or splint first fixed affected limbs, and so on to the hospital and then do further treatment.