Various types of working machines can be installed on a combined control machine car body as occasion demands, and the operation of a working machine can be automatically performed with the engine power of said combined control machine car body without a separate power source for each working machine. Accordingly, various types of fruit culture tasks can be simultaneously performed, thereby reducing expenditures, and more productively and efficiently performing the tasks of preventing damage by disease and pest, rotary work, cultivation weeding, spreading earth, pruning and sprinkling compost.