Paraquat poisoning has a very high mortality rate and there is a lack of effective antidote drugs in clinical practice, so the success rate of rescue in case of paraquat poisoning is very small. Paraquat is a very toxic herbicide, generally adults oral 5-15ml can cause death, the mortality rate can reach more than 70%. Oral paraquat poisoning patients can appear nausea, vomiting, abdominal pain symptoms, some patients will also appear vomiting blood, blood in the stool and other symptoms of gastrointestinal bleeding, serious cases will cause gastrointestinal tract perforation, but also cause liver damage, liver enlargement, liver function abnormalities, or even liver failure, but also can cause kidney damage and acute renal failure. The most serious harm is that it can cause lung damage, patients can cough, chest tightness, shortness of breath, dyspnea, serious cases will appear pulmonary edema, pulmonary hemorrhage caused by respiratory failure and death. Once paraquat poisoning should be sent to the hospital in a timely manner, a small number of patients with mild poisoning after active treatment still have hope of survival.