There is no fixed certain seven tumor tests, each hospital, each type of tumor-related examination package items are different, and their clinical significance provides reference for the auxiliary diagnosis of tumors. Commonly used tumor-related tests include alpha-fetoprotein, carcinoembryonic antigen, β2 microglobulin, glycoantigen CA125, glycoantigen CA15-3, glycoantigen CA199, ferritin and so on. These tests are not specific and are only done as one of the auxiliary diagnostics to determine malignant diseases. When a tumor occurs in the body, tumor markers may increase, but it is not certain that it is cancer in a certain part of the body, and it is necessary to combine with clinical symptoms, imaging examination, pathological examination, etc. to comprehensively determine what part of the body is cancerous. It is more meaningful for tumor markers to rise again after treatment or surgery. If tumor markers rise again, it is considered to be recurrence after surgery or insensitivity to chemotherapeutic drugs, which needs to be taken seriously. Tumor-related tests should be selected and analyzed under the guidance of doctors, and guide the diagnosis and treatment of the disease.