Antibiotics are increasingly being used in animal husbandry, and their residual problems in dairy products are also of concern. Residues of antibiotics in dairy products not only endanger human health, but also affect the normal economic and trade. In order to meet the needs of the grassroots testing antibiotic residues in milk, our company produced 2-in-1 rapid test strips (β-lactam and tetracycline) .This method is simple and reliable, can simultaneously detect the β-lactam antibiotics and tetracycline antibiotics , Is a worthy of promotion of qualitative screening method, can be used as liquid chromatography and other quantitative instrumentation method supplement.