The experimental results showed that under the reaction condition of 5.0 MPa and 250 o C, the catalytic activity for methanol synthesis over XH401 catalyst, prepared by adding small amount of the metal oxide MO x to the industrial catalyst C207, was about 20% higher initially and about 87% higher after undergoing a heat-treatment at 400 o C for 3 h than that over C207. DTA-comparative test of both catalysts XH401 and C207 showed that the heat-stability of XH401 was obviously better than that of C207.