The COPZr-2 catalyst,which was prepared in our prophase research,showed good catalytic performance in methanol steam reforming reaction.In this article,the best one was chosen as an example to study the reaction kinetics of methanol steam reforming over this type of catalyst.First,the effects of methanol conversion to outlet CO_2 and methanol conversion to outlet CO on methanol pseudo contact time W/F_(MeOH) were investigated.Then by applying the reaction route that methanol direct reforming (DR) and methanol decomposition (DE) were carried out in parallel,the reaction kinetic model with power function type was established.And the parameters for the model were estimated using a non-linear regression program which computed weighted least squares of the defined objects function.Finally,the kinetic model passed the correlation test and the F-test. The COPZr-2 catalyst, which was prepared in our prophase research, showed good catalytic performance in methanol steam reforming reaction. In this article, the best one was chosen as an example to study the reaction kinetics of methanol steam reforming over this type of catalyst .First, the effects of methanol conversion to outlet CO 2 and methanol conversion to outlet CO on methanol pseudo contact time W / F_ ​​(MeOH) were investigated. By applying the reaction route that methanol direct reforming (DR) and methanol decomposition (DE) were carried out in parallel, the reaction kinetic model with power function type was established. And the parameters for the model were estimated using a non-linear regression program which calculates weighted least squares of the defined objects function. Finally, the kinetic model passed the correlation test and the F-test.