The utility model relates to the field of grain flow feeding hoppers, in particular to a grain flow feeding hopper capable of preventing arching and blocking, which comprises a hopper body. The hopper comprises a hopper body and further comprises a fixing disc, guide rails, a gear ring, scraping rods, a fixing plate, a driving motor and a gear, the fixing disc is arranged at the upper position of the outer surface of the hopper body, the two symmetrical guide rails are arranged on the upper surface of the fixing disc, the gear ring is slidably connected to the upper surfaces of the guide rails, and the scraping rods are arranged on the left side and the right side of the inner surface of the gear ring; a fixing plate is installed in the middle of the right side of the outer surface of the hopper body. By arranging the driving motor, the output end of the driving motor can drive the gear to rotate during operation, the gear can drive the gear ring meshed with the gear to rotate under the cooperation of the guide rail when the gear rotates, the gear ring can drive the scraping rod to rotate synchronously when the gear ring rotates, and the scraping rod can stir materials in the hopper body when the scraping rod rotates. And the arching phenomenon caused by material attachment is avoided.