Abstract: Based on the disequilibrium theory, the disequilibrium cobweb model was studied, and the model was turned into the state-space equation. The robust controller was designed by using the robust H∞ control theory and the linear matrix inequality (LMI) technique. Based on the proposed method, some results could be obtained, such as, the impact of uncertainties on operation of the disequilibrium model could be restrained, stability of system evolution was guaranteed, and the operation of demand and supply of the goods came up to perfect state. Finally, taking the real estate development in Shenyang as the background, relevant statistics and simulation experiment were carried out and the H∞ control strategies were validated. The research results will have large significances on the theory and application of economic control system.