The invention discloses a detection test paper. The test paper comprises (1) a reaction support, (2) a water absorption pad, (3) a nitrocellulose membrane, (4) a gold-labeled antibody protective membrane and (5) a sample pad, wherein the nitrocellulose membrane is coated with a detection strip and a quality control strip of a rabbit anti-recombinant ricin A-link antibody and a quality control antibody; and the gold-labeled antibody protective membrane contains the rabbit anti-recombinant ricin A-link antibody labeled by colloidal gold. The test paper can be matched with a small instrument to carry out semi-quantitative detection, does not need professional training, has clear and identifiable result, can objectively store data, is simple to operate, easy to popularize, suitable for a basic level, suitable for field detection of emergency and suitable for epidemiological investigation, and plays an auxiliary role in diagnosis of ricin infection.