The invention discloses a suspension apparatus of a screw conveyer. The suspension apparatus of the screw conveyer comprises a connecting flange shaft which is used for connecting two rotating shafts and a bearing seat which is arranged on the connecting flange shaft. A bearing is arranged between the connecting flange shaft and the bearing. Each rotating shaft is further provided with two glands. The two glands are respectively arranged on two sides of the bearing seat. A seal component is arranged between each gland and each rotating shaft. The seal component comprises a hair felt ring and an oil seal. The hair felt ring and the oil seal are arranged in sequence from inside to outside. The oil seal is a J-shaped frameless rubber oil seal. The suspension apparatus of the screw conveyer is capable of preventing dust from entering into the bearing seat and preventing lubrication materials in the bearing seat from leaking outwards, guarantees a good lubrication state in the bearing seat, avoids bearing abrasion, fissures producing and breaking, is long in service lift, is free from frequent production halts, overhauling and exchanging and increases production efficiency.