The utility model relates to a belt storage silo bulk cargo distributing device, include: the rotary power part, it is located the storage silo outside, connects barrel holder, and its upper portion is equipped with the bell mouth, and the tubulose section of thick bamboo of material belt conveyor funnel passes from the centre of connecting barrel holder, connects barrel holder and is connected with the rotary power part, and the power that the rotary power part was accepted through the pair in connection barrel holder's outside rotates, and the both sides of connecting the barrel holder lower part are equipped with the track, connect the barrel holder lower part and are equipped with flexible barrel holder 0, telescopic belt conveyer, its with be connected the barrel holder sub -unit connection, telescopic belt conveyer is through flexible power part back -and -forth movement in the track, simultaneously, telescopic belt conveyer rotates under the rotatory drive of barrel holder connecting, the electric cabinet, it is located the storage silo outside to be connected with rotary power part and flexible power part. The beneficial effect of the utility model: do not increase the whole height of spherical storage silo and can make material uniform application, increased actual cross -section area of repose of materials, the volume in make full use of ball storehouse.