Strawberry non-fall conveying and sorting circulation system

The invention provides a strawberry non-fall conveying and sorting circulation system. The strawberry non-fall conveying and sorting circulation system comprises a circulation conveying system, a feeding mechanism, a strawberry external quality detection mechanism, a plurality of cache discharging mechanisms and a strawberry internal quality detection mechanism. The circulating conveying system comprises a synchronous belt circulating conveying mechanism and a plurality of clamping mechanisms; the feeding mechanism conveys strawberries to the clamping mechanism, the clamping mechanism clamps strawberry stems to move to the strawberry external quality detection mechanism to preliminarily classify the strawberries, whether the strawberries need to be further classified or not is judged, if not, the strawberry stems are clamped to the cache discharging mechanism of the corresponding grade to unload the strawberries, and if yes, the clamping mechanism clamps the strawberry stems to the cache discharging mechanism