The author conducted Some basic experiments on the refrigerated blood therapy, and obtained the following results. 1) One intravenous injection of homogeneous refrigerated blood in Small doses improves the recovery of rabbit's anamia caused by depletion. 2) The homogeneous refrigerated blood also improves the recovery of rabbits anamia caused by injections of chllargol. 3) A series of intraperitoneal jnjections of homogeneous refrigerated blood in small doses into the mouse exposed to a single whole-body rediation injury, decreased its mortality rate and increased its survival time. 4) The tissue respiration rate of homogenized mouse liver was incredsed by the addition of refrigerated blood extract. 5) The addition of refrigerated blood extract accelerates the fermentation of yeast and apozymase. 6) In using acceleration of yeast's fermentation, the source of the effective substance was investigated. It seemed that the effective substance was increased in the blood cells by refrigeration, and having increased it then moved to the serum.