The invention provides a preparation method of a foot massage insole. According to the method, the insole is customized for a user; the method comprises steps as follows: a pelma bone photo is obtained, and acupuncture points designated according to the dialectical therapy principle of traditional Chinese medicine and a foot diagnosis and treatment prescription are marked on the pelma bone photo; a pelma photo is obtained and combined with the pelma bone photo, the acupuncture points on the pelma bone photo are projected on the pelma photo, and corresponding foot diagnosis and treatment prescription marks are formed on the pelma photo; massage points are arranged in positions, corresponding to foot diagnosis and treatment prescription marks on the pelma photo, of an insole bottom plate. The foot massage insole is customized for consumers by means of the bone photo according to the foot diagnosis and treatment prescription, and the defect that massage points are not quite aligned to corresponding acupuncture points due to individual differences is overcome.