This invention discloses that the product from mango kernels through ethanol extraction can be used for the treatment of colorectal cancer. The product can be obtained by using 70 % ethanol to extract fresh mango kernels, dried or grounded mongo kernels or their combinations at room temperature. The mixture is then processed with centrifugation separation to obtain the supernatant liquid which is the product and contains phenolic compounds. The product can be used to treat colorectal cancer by means of intraperitoneal injection, subcutaneous injection, intramuscular injection or intravenous injection.本發明揭示芒果仁之一經乙醇萃取的產物可被用來治療結腸直腸癌。