The enzyme label washing machine is mainly used to clean some residual substances after the detection of the enzyme label plate and wash to remove unbound antigens and impurities. After washing, only specific antibodies are left on the solid phase carrier. Impurities in other immunoglobulins and serum are washed away during the washing process because they cannot combine with solid-phase antigens. In this way, the error caused by residues in the subsequent detection process can be reduced, and the pipeline can also be automatically flushed to prevent the blockage caused by the crystallization of the washing solution during re-use.