Directional flow immunochromatography device

According to the technical scheme, the directional flow immunochromatography device comprises a main body, a groove is formed in the outer wall of the right end of the main body, a buffer solution groove is formed in the left end of the top face of the main body, and a first flow groove is fixedly formed in the bottom end of the buffer solution groove. A storage bottle is fixedly mounted at the top end of a main body, and a mixing tank is fixedly mounted in the main body, so that liquid A and liquid B can be fully mixed by a stirring head in the storage bottle, and sample blood and a buffer solution are mixed by a stirring plate on the inner wall of the mixing tank to enter chromatography test paper for observation; the problems that when the color developing liquid is manually prepared, the efficiency is low, the requirement for a high-detection-frequency place cannot be met, and it cannot be guaranteed that the liquid A and the liquid B can be evenly mixed in the preparation process, so that the color devel