Abstract: Disclosed is a portable micro blood separator, which has a blood separator including a main body including an upper substrate and a lower substrate; a blood introduction unit formed at one side of the main body for allowing blood to be introduced into the separator; a blood inflow unit including an inflow groove formed in the lower substrate, through which the blood introduced by the blood introduction unit flows; and a plasma extraction unit including extraction spaces extended from the blood inflow unit and having a height lower than that of the inflow groove of the blood inflow unit so that plasma can be separated from the blood flowing into the blood inflow unit, so as to separate the plasma and corpuscles from the blood and analyze ingredients in the separated plasma.