Production method of methyl salicylate

The invention discloses a methyl salicylate production method, which comprises: uniformly mixing salicylic acid and methanol, adding a solid composite acid catalyst, and carrying out a reflux reaction for 2-3 h under the conditions of a temperature of 80-82 DEG C and a stirring rotation speed of 200-250 r/min to obtain a methyl salicylate crude product; the mass ratio of the salicylic acid to the methanol to the solid composite acid catalyst is 1: (6-8): (0.01-0.02); the solid composite acid catalyst is selected from a Eu2O3-Fe2O3/SO4 < 2->-SBA-15 catalyst or a Eu2O3-Fe2O3-NiO/SO4 < 2->-SBA-15 catalyst, and the solid composite acid catalyst is selected from an Eu2O3-Fe2O3/SO4 < 2->- And filtering, neutralizing, washing and distilling the methyl salicylate crude product to obtain a methyl salicylate finished product. The methyl salicylate produced by the method is relatively high in yield, the finished product has relatively high purity, and the content of toxic impurity phenol in the product is relatively low