The utility model provides a district grain harvester combine, including running gear, the supplementary header device of strength, thresher, cleaning plant, air conveying device, sack filling device, hydraulic pressure integrated device, driving controlling device and engine device. Running gear is located the bottom of complete machine, and header unit bit in the front end of complete machine is assisted to the strength, and thresher and cleaning plant set gradually at the rear of the supplementary header device of strength, and the air conveying device is linked together with the export of cleaning plant. Sack filling device is in the rear end of complete machine to be linked together with the end of air conveying device, the seed that will carry out is according to the weight bagging-off of district unit. A district is finished to every results, finishes drilling the longitudinal phase at the state that stops marcing and should plant clearly by the device, prevents different minizones miscegenation. The utility model discloses work efficiency height, seed grain percentage of damage and loss rate are low, inside seed grain is easily cleared up, is had kind of a grain and remains, effectively solve the problem of gathering in the crops the inside relict grain of in-process machine between the different districts and causing the miscegenation.