The invention discloses a green-protecting and brittleness-keeping production process of cress. The cress is prepared by mixing cress, salt, monosodium glutamate, a spice mixture, plant oil, sesame oil seasoning, citric acid, zinc acetate, calcium chloride, disodium hydrogen phosphate, sodium dihydrogen phosphate, hydrogen peroxide, guaiacol, nitric acid and hydrochloric acid according to a certain ratio. Equipment and instruments used in the production process comprise an ultraviolet and visible spectrophotometer, a texture analyzer, a color difference meter, a freezing centrifuge, a pulping machine, a pH meter and an electronic balance. By taking the corresponding technical measures, ideal green-protecting and brittleness-keeping effects can be achieved; by taking reasonable technical measures, various negative factors are effectively controlled, the nutritional value and sensory quality of a product are kept to the maximum extent, and healthy and delicious fruit and vegetable products are provided for customers.