Methanol conversion over two FCC catalysts, zeolite catalyst, fresh ZRP catalyst series, and fresh SAPO-34 catalyst was experimentally investigated, and the methanol conversion between those catalysts was compared over pulse microreactor under 500 degrees C. The effect of different temperatures on the products distribution over SAPO-34 catalyst, first with pure methanol feed and then with methanol/water mixture feed, has been studied. Pulse-micro-reactor and FID gas chromatograph equipment were used. Experimental results indicate different catalysts have different effects on methanol conversion, light olefins yield increased and DME decreased when using SAPO-34 catalyst as the temperature was increased. The optimum temperature appears to be 450 degrees C in terms of methanol conversion to light olefins over SAPO-34.