The utility model belongs to the field of aviation environment protection and especially relates to a small general flight modularization cabin distribution system comprising a main hose and a main body pipeline communicated with an air source. The main body pipeline is provided with a plurality of personal nozzles; the personal nozzles are communicated with the main body pipeline via the hose. With a design of the modularization cabin distribution system, appropriate module numbers are chosen according to flight use types and new parts are unnecessary; and without addition of part types, problems of maintenance of part indication and prepare spares in different flight states can be avoided, so management cost is reduced and design work time cost and labor cost are reduced.