The invention discloses a multi-barrel molecular sieve wheel intermittent circulation dehumidification dryer, which comprises a multi-barrel molecular sieve wheel and an intermittent driving mechanism. The multi-barrel molecular sieve runner includes a top cover, a bottom cover and at least three dehumidification barrels, each of which is filled with granular molecular sieve desiccant; the intermittent drive mechanism includes a rotating shaft capable of intermittent rotation, a driven wheel, and a driving wheel with a lever , intermittent motor and position sensor, and the dehumidification bucket is evenly arranged on the outer periphery of the rotating shaft and fixedly connected with the rotating shaft. After adopting the above structure, each dehumidification barrel can be driven by the rotating shaft to perform intermittent regeneration-cooling-processing cycle work, which can make the air in the working circuit reach a lower dew point, and the dew point is stable and the fluctuation range is small. And the range can be adjusted. At the same time, the granular molecular sieve desiccant has sufficient regeneration, high energy utilization rate, and small equipment footprint. In addition, the regenerative cooling does not introduce outside air, and the regenerative waste heat is reused to heat the processed materials, saving energy.