Rapid detection of Chlamydia trachomatis includes qualitative and quantitative rapid detection. The commonly used qualitative rapid detection of gold labels (colloidal gold method). The detection principle is as follows: Anti-chlamydia lipopolysaccharide monoclonal antibody and anti-mouse polyclonal antibody were fixed in solid phase cellulose nitrocellulosa membrane, and were made with another anti-chlamydia lipopolysaccharide monoclonal antibody labeled with colloidal gold and other reagents and raw materials. The detection method of chlamydia was established in the form of double antibody sandwich by colloidal gold immunochromatography. For the detection of chlamydia in the cervix of women and the urethra of men.