Myasthenia gravis crisis can be treated with tracheal intubation, artificial assisted ventilation, cholinesterase inhibitors, and plasma exchange. Myasthenia gravis crisis is the main cause of death in patients with myasthenia gravis, which is caused by the aggravation of the symptoms of respiratory and pharyngeal muscle weakness, insufficient ventilation and increased airway secretions, which obstruct the airway. Therefore, tracheal intubation should be carried out in a timely manner, and artificial assisted respiration should be performed to improve the patient’s symptoms of hypoventilation. Early plasma exchange or methylprednisolone shock therapy can also be used to regulate immunity. Overall, myasthenia gravis crisis is a very critical emergency, should be promptly to the hospital neurology department, under the guidance of professional physicians standardized diagnosis and treatment, so as not to delay the condition.