The invention relates to a stirring device, in particular to the stirring device for refining petroleum in Chemical industry. The technical problem to be solved in the invention is to provide the stirring device for refining petroleum in Chemical industry with uniform stirring, impurity filtering and high catalytic speed. In order to solve the technical problem, the invention provides the stirringdevice for refining petroleum in Chemical industry, which comprises a bottom plate and the like, wherein a catalytic tank is arranged at the top of the bottom plate, and a cover plate is connected atthe top of the left side of the catalytic tank in a hinging way; a screen plate is arranged in the middle of the inside of the catalytic tank, and a mixing device is arranged at the upper part of thecatalytic tank; a stirring device is arranged at the lower part of the catalytic tank. The stirring device for refining petroleum in Chemical industry provided by the invention achieves the effects of stirring evenly, filtering impurities and increasing the catalytic speed. The device firstly mixes the crude oil and the catalyst by a stirring roller, then filters the impurities through the screenplate, and then stirs the crude oil and the catalyst by the stirring device to achieve the effect of fully catalyzed mixing.