Dichlorvos belongs to the highly toxic class of organophosphorus pesticides, and poisoning can lead to the death of the patient if not treated in time. If a patient is accidentally poisoned, he or she needs to be treated by means of stopping contact with the poison, applying antidote drugs, and comprehensive symptomatic treatment.1. Stop contact with the poison: If a patient is poisoned through the respiratory tract or skin, he or she should immediately leave the poisoned environment, remove contaminated clothing, and thoroughly wash the poisoned skin, nail crevices and hair with soap and water. If the patient is poisoned orally, it is necessary to induce vomiting first and then lavage the stomach. The time window of gastric lavage for dichlorvos poisoning can be extended appropriately, usually within 24 hours, and repeated gastric lavage may be required; 2. Application of antidote drugs: clinically used cholinesterase resuscitators include iodine dephosphoridine, chlorophosphoridine, double compound phosphorus, double dephosphoridine, etc.; representatives of anticholinergics are atropine and pentoxifylline hydrochloride injection; 3. Comprehensive symptomatic treatment: pay attention to keeping the respiratory tract unobstructed, and give mechanical ventilation if necessary. If necessary, mechanical ventilation should be given. In case of convulsions and convulsions, sedative drugs can be applied. Pay attention to monitoring cardiopulmonary function, preventing and treating shock, correcting arrhythmia, preventing and treating cerebral edema, maintaining water-electrolyte balance, and preventing infection.