An immunochromatographic test strip for diagnosing kala-azar based on detection of circulating antigens comprises a sample mat, a gold labeling mat containing colloidal gold labeling probes, a cellulose membrane and a water absorption mat. A quality control line is arranged at the end, away from the gold labeling mat, of the cellulose membrane, a detection line is arranged on the portion, between the quality control line and the gold labeling mat, of the cellulose membrane, the detection line is composed of monoclonal antibodies of specific binding Leishmania donovani amastigote polypide antigens and generated by hybridomas, with the preservation number of CGMCC No.9240, of mice, the colloidal gold labeling probes are monoclonal antibodies of specific binding Leishmania donovani amastigote polypide antigens with different epitopes and generated by hybridomas, with the preservation number of CGMCC No.9239, of mice, and the quality control line is composed of secondary antibodies of the specific binding colloidal gold labeling probes or streptococcus G protein or staphylococcus aureus A protein. The immunochromatographic test strip is high in sensitivity and specificity, the overall sensitivity can reach 83%, and the specificity is 95%.