Construction machine

摘要

A construction machine which is capable of effectively improving rigidity in an up-down direction of a structure for supporting a control box without greatly changing the thickness of a conventional plate, to which a control box is attached, and a conventional structure around the control box is provided. The construction machine includes a floor plate (10), a seat (1) and a control box (2) provided on the floor plate (10), a support plate (3) having an end portion, in a left-right direction, configuring a supporting end portion, on which the control box (2) is mounted, a second slide rail (5) that extends in a front-rear direction and is attached to a lower surface side of the support plate (3), and a reinforcing block (7) that extends in a direction crossing the second slide rail (5) in a plan view. The reinforcing block (7) has a portion extending toward an end surface of a supporting end portion (3c) from a position in an area of the second slide rail (5) in a plan view, and the portion being attached to the supporting end portion (3c) of the support plate (3).