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The CuZnAlX/HZSM-5 (X=Cr,Zr,Co,Ce) catalyst prepared by co-precipitation and then mechanically mixed with HZSM-5 was used for hydrogen production from steam reforming of dimethyl ether (SRD) in a metal foam microreactor.These catalysts performance were investigated by means of XRD,TPR,SEM and BET.The results showed that promoter Cr can reduce the average pore diameter and reduction temperature of catalyst effectively,and inhibited the form of Zn(OH)2 during the catalyst preparation process.