The invention discloses a piece of test paper for
colloidal gold immunochromatograohic
assay of an IgG (
immunoglobulin G)
antibody of dog anti-
rabies virus and a preparation method of the test paper. The test paper comprises a sample absorbing region, a gold-labeled probe region, a
solid-phase
antibody region, a water absorbing region and a supporting plate, wherein the sample absorbing region, the gold-labeled probe region, the
solid-phase
antibody region and the water absorbing region are laid on the supporting plate and are partially overlapped in sequence; the sample absorbing region is coated with
rabies virus antigen; the gold-labeled probe region is coated with a gold-labeled probe 1 and a gold-labeled probe 2 which are a
monoclonal antibody of the
colloidal gold-labeled
rabies virus and rabbit IgG respectively; the
solid-phase antibody region has a
control line C1 (coated with a goat anti-rabbit IgG antibody), a testing line T (coated with a goat anti-dog IgG antibody), a
control line C2 (coated with a goat anti-rabbit IgG antibody) and a
control line C3 (coated with a goat anti-mouse IgG antibody). The test paper disclosed by the invention has the advantages that the test is fast, the accuracy rate is high, the specificity is strong, the test paper is simple and convenient to carry and operate, and the level of the
rabies virus antibody is judged according to the color depths of the control lines.