Portable dry blood spot sample quantitative collection device

The utility model relates to a portable dry blood spot sample quantitative collection device. The device comprises a sampling box and a dried blood spot sample preparation assembly, the sampling box comprises an upper box cover and a lower box cover, and the upper box cover and the lower box cover are connected through a folded edge; the upper box cover is provided with a quantitative blood collection tube box; the dried blood spot sample preparation assembly is clamped on the inner wall of the lower box cover, the dried blood spot sample preparation assembly comprises a base plate, sample collection filter paper and a sample injection pore plate, the base plate is provided with a plurality of cavities used for containing the sample collection filter paper, vent holes are formed in the bottoms of the cavities, and sample injection holes are formed in the positions, corresponding to the vent holes, of the sample injection pore plate; a drying agent box is arranged at the bottom of the lower box cover. Accordin