The role of kinase is to destroy and degrade the kinins formed in the body, and kinins are involved in many important pathological and physiological processes, which can diastole blood vessels, lower blood pressure, regulate local blood flow and increase vascular permeability, promote body fluid exudation, participate in local inflammatory responses and affect cell proliferation. Kinins also stimulate renin secretion from the kidneys, promote vasopressin release from the pituitary gland, and promote catecholamine secretion from the adrenal medulla. Among all the known cellular mediators, kinins are also among the mediators that play a major role in the inflammatory response. Kinin is the most potent pain-causing substance in the body, so the role of kinase is to degrade it, thus making the effect of kinin significantly weaker and reducing the inflammatory response, thus providing some degree of relief.