Avian leukemia is still an important disease affecting the poultry industry in some countries. Due to differences in breeding level, biosecurity measures and purification consciousness, the disease is still prevalent in chicken flocks in some areas to varying degrees, causing economic losses to the local poultry industry. The avian leukemia ELISA group-specific antigen detection kit is mainly used for disease diagnosis, epidemic monitoring, breeding flock purification, vaccine effect evaluation, etc Operational advantages: constant incubation temperature, reduced detection errors; detachable reaction plate, convenient operation, reduced waste.