A working machine comprising: a base carrier; a machine body mounted on the base carrier, the machine body including a working device configured to make a working movement according to an operation, a device room accommodating a device for hydraulic control of the working device, a flooring forming a floor surface, and an operation space defined on the floor surface to allow the operation on the working device to be performed in the operation space; a seat stand provided in the operation space and including a side wall portion defining a hose accommodation space; an operator's seat supported by the seat stand at a position higher than the floor surface; a console box (12R, 12L) supported by the seat stand at a position higher than the floor surface and alongside the operator's seat, the console box (12R, 12L) having a rear part coupled to the seat stand so as to be capable of being turned to allow the console box (12R, 12L) to be moved between a fall-down position at which the console box (12R, 12L) blocks an entrance route lateral to the operator's seat and an upturn position at which a front part of the console box (12R, 12L) is upturned so as to open the entrance route; and a hydraulic hose including an over-floor region which extends upward from the floor surface to be connected to the front part of the console box (12R, 12L), the over-floor region being accommodated in the hose accommodation space so as to be rearward curved with a curvature which is increased with a movement of the console box (12R, 12L) from the upturn position to the fall-down position, characterized in that: the side wall portion of the seat stand has an oblique guide surface which is laterally oblique relatively to a plane orthogonal to an axis of the turning of the console box (12R, 12L); and the oblique guide surface guides a curved portion of the over-floor region of the hydraulic hose so as to make the curved portion slide laterally along the oblique guide surface by the turning of the console box (12R, 12L). a base carrier; a machine body mounted on the base carrier, the machine body including a working device configured to make a working movement according to an operation, a device room accommodating a device for hydraulic control of the working device, a flooring forming a floor surface, and an operation space defined on the floor surface to allow the operation on the working device to be performed in the operation space; a seat stand provided in the operation space and including a side wall portion defining a hose accommodation space; an operator's seat supported by the seat stand at a position higher than the floor surface; a console box (12R, 12L) supported by the seat stand at a position higher than the floor surface and alongside the operator's seat, the console box (12R, 12L) having a rear part coupled to the seat stand so as to be capable of being turned to allow the console box (12R, 12L) to be moved between a fall-down position at which the console box (12R, 12L) blocks an entrance route lateral to the operator's seat and an upturn position at which a front part of the console box (12R, 12L) is upturned so as to open the entrance route; and a hydraulic hose including an over-floor region which extends upward from the floor surface to be connected to the front part of the console box (12R, 12L), the over-floor region being accommodated in the hose accommodation space so as to be rearward curved with a curvature which is increased with a movement of the console box (12R, 12L) from the upturn position to the fall-down position, characterized in that: the side wall portion of the seat stand has an oblique guide surface which is laterally oblique relatively to a plane orthogonal to an axis of the turning of the console box (12R, 12L); and the oblique guide surface guides a curved portion of the over-floor region of the hydraulic hose so as to make the curved portion slide laterally along the oblique guide surface by the turning of the console box (12R, 12L). the side wall portion of the seat stand has an oblique guide surface which is laterally oblique relatively to a plane orthogonal to an axis of the turning of the console box (12R, 12L); and the oblique guide surface guides a curved portion of the over-floor region of the hydraulic hose so as to make the curved portion slide laterally along the oblique guide surface by the turning of the console box (12R, 12L).