The present invention relates to a molecular sieve catalyst microwave drying process method and device. The present invention coats the molecular sieve catalyst serosity to belt shape and puts it in microwave device, in order to dry it quickly and continuously; the special microwave drying device adopts reciprocating cycle feeding mode by conveyer belt to feed the molecular sieve catalyst serosity into microwave drying device to remove water; the mixed molecular sieve catalyst serosity is coated on the surface of running conveyer belt with fixed point and quantity by a serosity distributor disposed at one end of the conveyer belt. The serosity is kept being coated about 2-100mm, and is then put in microwave field to dry one way for 5-60 min, then molecular sieve catalyst drying product can be obtained. The present invention has quick heating speed and can heat uniformly, is adapted to dryness for serosity materials, can continuously work, can be operated conveniently and controlled easily; the drying sample will not be polluted, and the material will not agglomerate after dryness; the produce process is clean and good for environment protection; the microwave processing process can accelerate activating agent into molecular sieve framework, thereby the catalyzing performance of the molecular sieve catalyst can be improved.