Provided is a method for producing an imide ether compound in high yield. The method is characterized in that a nitrile compound, an alcohol, and a hydrogen halide are continuously introduced into a flow reaction device comprising a mixer and a flow reactor, to be subjected to a reaction. Because a reaction proceeds in a ratio of 1:1 by a flow reactor, selectivity is improved and generation of by-products is decreased, and thus an imide ether compound can be efficiently produced.