PURPOSE: To provide the structure of a noncontact rotary pump which has the simple structure, permits easy assembly at a low cost, and with which leak loss is small, and the oil leak and the increase of the thermal load of a bearing are prevented.

CONSTITUTION: As for a noncontact type pump, a rotary shaft 21 on an extension line on the root part side of a rotary hollow body 6 is supported at least at two places by bearings 19 and 20, and a male rotor is supported in turnable manner. A rotary shaft 21' of a female rotor 10 is supported at least at two places by bearings 19' and 20'. Further, fluid is allowed to flow out from the top edge part side of the rotary hollow body 6.