If the patient appears to have accidentally ingested diamond powder, it is necessary to immediately induce vomiting at home. After drinking a large amount of warm water 5000-10000mL, apply the method of picking the throat to vomit out the diamond powder that is not fully absorbed in the digestive tract, and then immediately call 120 for help and arrive at the hospital for the next step of treatment. The patient can apply emetic method for gastric lavage if he is conscious, if he is not conscious, he can apply mechanical intubation method for electric gastric lavage, and then he can instill mannitol or magnesium sulfate in the large intestine, and use diarrhea to clear the intestinal lumen of the diamond powder that is not completely absorbed. Hydrochlorothiazide or furosemide can also be given by diuresis to metabolize the incompletely metabolized drugs in the body. Finally, if the patient suffers from hepatic or renal insufficiency, continuous blood purification can be applied for complete detoxification.