A method to get the solution of the Chinese Remainder Theorem by solving a differential equation is proposed. Stable equillibrium points and error of the optimal solution of the nonlinear differential equation with residue reduction operation coefficients are discussed. The nonlinear differential equation formulated in this paper can converge to the solution of the Chinese Remainder Theorem with arbitrarily small error.The differential equation can be solved in real-time by means of artifitial neural networks. This network can be used to realize residue-to-decimal conversion. The results of our computer simulation demonstrate that the proposed theory is reasonable.