Aiming at the frequent retention phenomenon and the fatigue wear failure problem of moving parts of FIBC in the process of conveying, leading to failure of packaging capacity in meeting customers' requirements, a new type of turning device in FIBC conveyor was designed and its structural composition was presented. Through analysis of the existing problems in the material properties and the original turning device in FIBC conveyor, the paper put forward a design scheme of the novel device together with its structure composition. The results showed that the packaging capacity could reach 52.2 bags per hour, which was increased by 35.8% as compared with that of the original equipment. The new device overcame the impact load caused by the properties of powder and granular materials and eliminated the retention phenomenon of FIBC during conveying. The stability of transportation and working life of the moving parts were improved, as well as the packaging capacity .