The invention discloses a method for hydrolyzing feather to extract amino acid through microwave heating at high temperature and high pressure, which belongs to the amino acid manufacture field; According to the invention, feather and ultrapure water are taken as raw materials, no catalyst is used, a microwave high pressure ceramic reaction vessel is taken as a device, the reaction is carried out at the condition that the temperature is 160-200 DEG C, the pressure is 0.3-1.7MPa and the reaction time is 1/6-1 hour, and a mixed liquor of arginine, glycine, proline, aspartic acid, cystine and the like can be obtained after reacting. The production method has the advantages that no soda acid is used, the cost is greatly reduced, no pollution is generated, the reaction time is short; the destroy rate of amino acid in a filtrate is reduced, the process of filtrate post-treatment is simple, the output rate is increased; the production technology is simple, the reaction condition is mild, and the production method has the characteristics of high efficiency and environmental protection.