Although both liver cancer and gastric cancer belong to gastrointestinal malignant tumors, the differences are still obvious: First, the organs of origin are different: liver cancer originates in the liver and initially manifests as liver masses, while gastric cancer occurs in the stomach and mainly consists of solid masses in the stomach. Second, the clinical symptoms are different. Although both liver cancer and gastric cancer can show common gastrointestinal symptoms such as abdominal distension, vomiting and loss of appetite, liver cancer manifests mainly as liver function damage, mainly jaundice and anorexia of oil, while gastric cancer mainly manifests as loss of appetite, nausea and vomiting with diarrhea obviously. The diagnosis of liver cancer can be clinically diagnosed by ultrasound or CT examination of liver combined with fetoprotein concentration test, while gastric cancer must be diagnosed by electronic gastroscopy to obtain biopsy for pathological diagnosis. Although both early stage liver cancer and gastric cancer are mainly treated by surgery, the standard treatment for middle and late stage liver cancer is interventional therapy, while chemotherapy is the main treatment method for gastric cancer besides surgery.