NOVELTY - Cyclohexane catalytic production of biodiesel, by mixing pepper seed oil with methanol and catalyst cyclohexane, pumping the mixture for esterifiable interesterification reaction in kettle, recycling methanol and cyclohexane for dehydration, placing fatty acid methyl ester in heating kettle for decompression, distilling, mixing waxiness in pepper seed oil with non-hydrogen catalyst for producing catalytic and hot cracking reaction, converting waxiness in pepper seed oil to small molecular biodiesel and carbonizing pectin in pepper seed oil to obtain vegetable oil tar.    USE - The method is useful for cyclohexane catalytic production of biodiesel (claimed).    ADVANTAGE - The biodiesel can be obtained rapidly in large quantities by simple process, and has low solidification point. The production of acid tar, acidoid and Cassia nomame can be avoided during esterifiable interesterification process, and thus prevents secondary pollution.    DETAILED DESCRIPTION - Method for cyclohexane catalytic production of biodiesel using pepper seed oil as raw material, involves mixing pepper seed oil with methanol and catalyst cyclohexane, pumping the mixed pepper seed oil with methanol and cyclohexane in a reaction kettle with a pump, completing esterifiable interesterification by contacting methanol with pepper seed oil in gas-liquid phase under normal pressure and temperature of 70-84 degrees C, where mass ratio of the pepper seed oil and methanol is 10:2-3, recycling methanol and cyclohexane and dehydrating with filter material, recycling glycerin from the conical bottom of reaction kettle, placing the fatty acid methyl ester esterified in interesterification process to hot blast heating kettle for decompressing, distilling and recycling, where pressure of the hot blast heating kettle is 1-6 mmHg, where temperature is controlled at 160-280 degrees C, mixing waxiness in pepper seed oil with non-hydrogen catalyst of 400 meshes under normal pressure and temperature of 350-430 degrees C, producing catalytic and hot cracking reaction, transforming the waxiness in pepper seed oil to small molecular biodiesel, and carbonizing the pectin in pepper seed oil to obtain vegetable oil tar.