Purpose: With improvement of living standard, environmental quality become more and more seriously damaged. While the SOS bacterioplage induction methed is nearly a high-speed and reliable method to detect genetic toxins. The SOS syndronous test make an improvement on the above method. On the one hand, we are reducing the environmental pollution, on the other hand, we are attempt to find antimugens and some ways against cancer. Using the natrual edible plants against mutage and cancer is one of the important topic on preventing carcinogenic factors. The study examed 7 kinds natrual edible plants and vegetables. Method: We adopted the test of the Antimutagenicity and mutagenicity with S9 (rat liver microsomal enzymes system) and without S9 and repeat test. Result: The results showed all samples had no mutagenicity. Scallion seed, sweet potato and pomegranate peel were antimutagens against Mitomicy(MMC) with S9 and without S9. They are well worth of devoloping and using further. Pea seedling, crowndaisy chrysanthemum. alon and romaine had no antimutagenicity with and without S9. The people can eat usually.