The invention provides an enzyme conjugate stabilizing solution which comprises the following components: 1-7.5g / L protein material, 5-50g / L saccharide material, 2-30g / L amino acid material, 5-50g / L antipyrine, 1-10 g / L vitamin C, 0.2-5g / L surfactant, 0.5-5 million IU / L gentamycin sulfate, 0.5g / L Proclin 300 and 0.02mol / L phosphate buffer solution the pH value of which is 7.4, wherein the protein material is bovine serum albumin or casein; the saccharide material is trehalose, gluecose, lactose or cane sugar; the amino acid material is glycine, phenylalanine, praline, tyrosine, serine, cysteine, methionine, glutamoyl or lysine; the surfactant is Twain-20, Twain-80 or triton x-100. The enzyme conjugate stabilizing solution provided by the invention solves the problem that the enzyme conjugate is easy to lose activity after the enzyme is not in the low temperature storage environment in related technology.