To set a width dimension corresponding to the longitudinal direction of the material processing machine small in the region where a main control valve and a sub control valve are arranged.

A mobile crushing machine includes: a crusher 3; auxiliary machines such as a feeder 5 for implementing operation incidental to the processing of a target to be processed; an actuator 17 for a processing device for driving the crusher 3; a feeder actuator 20 and the like for driving the auxiliary machines; a main control valve 51 for controlling the actuator 17 for a processing device; and a sub control valve 14 for controlling the feeder actuator 20 and the like. The mobile crushing machine is configured to have a connecting port 56 for travelling left and a connecting port 57 for travelling right to which hoses 54, 55 are connected respectively, wherein the hoses 54, 55 guide the pressurized oil of the hydraulic pumps 41, 42 for a hydraulic shovel equipped on the outer side of the mobile crushing machine, to the motor 18 for travelling left and the motor 19 for travelling right of the machine respectively.