A control lever device for a construction machine comprising: left and right consoles (20, 36) that are arranged on both left and right sides of an operator's seat and a front side of which can swing in an upper-lower direction about a rear side as a fulcrum (O-O) attached on a fixed frame; control levers (21, 37) that are provided on said left and right consoles (20, 36) to control a front device; and urging members (22, 38) that urge said respective consoles (20, 36) configuring said left and right consoles (20, 36) such that the front sides of said left and right consoles (20, 36) swing upward, characterized in that: a lock mechanism (25, 41) is provided at the front of each of said consoles (20, 36) to fix said console (20, 36) in an optional position; a lock release lever (31, 44) is provided on each of said lock mechanisms (25, 41) to select a lock state of fixing said console (20, 36) and a lock release state of releasing the fixation of said console (20, 36), said lock release lever (31, 41) being provided to extend in a left-right direction away from said operator's seat and from said lock mechanism (25, 41), said lock state being adjusted by an inclined posture in which said lock release lever (31, 44) lies in an oblique downward direction and said lock release state being adjusted by a horizontal posture in which said lock release lever (31, 44) is rotated in an upward direction from said inclined posture; and a hand hold part (35, 48) is provided at the front of each of said consoles (20, 36) and above each of said lock release levers (31, 44) to cause said console (20, 36) to swing in the upper-lower direction in said lock release state in which the fixation of said console (20, 36) is released by said lock release lever (31, 44). left and right consoles (20, 36) that are arranged on both left and right sides of an operator's seat and a front side of which can swing in an upper-lower direction about a rear side as a fulcrum (O-O) attached on a fixed frame; control levers (21, 37) that are provided on said left and right consoles (20, 36) to control a front device; and urging members (22, 38) that urge said respective consoles (20, 36) configuring said left and right consoles (20, 36) such that the front sides of said left and right consoles (20, 36) swing upward, characterized in that: a lock mechanism (25, 41) is provided at the front of each of said consoles (20, 36) to fix said console (20, 36) in an optional position; a lock release lever (31, 44) is provided on each of said lock mechanisms (25, 41) to select a lock state of fixing said console (20, 36) and a lock release state of releasing the fixation of said console (20, 36), said lock release lever (31, 41) being provided to extend in a left-right direction away from said operator's seat and from said lock mechanism (25, 41), said lock state being adjusted by an inclined posture in which said lock release lever (31, 44) lies in an oblique downward direction and said lock release state being adjusted by a horizontal posture in which said lock release lever (31, 44) is rotated in an upward direction from said inclined posture; and a hand hold part (35, 48) is provided at the front of each of said consoles (20, 36) and above each of said lock release levers (31, 44) to cause said console (20, 36) to swing in the upper-lower direction in said lock release state in which the fixation of said console (20, 36) is released by said lock release lever (31, 44). a lock mechanism (25, 41) is provided at the front of each of said consoles (20, 36) to fix said console (20, 36) in an optional position; a lock release lever (31, 44) is provided on each of said lock mechanisms (25, 41) to select a lock state of fixing said console (20, 36) and a lock release state of releasing the fixation of said console (20, 36), said lock release lever (31, 41) being provided to extend in a left-right direction away from said operator's seat and from said lock mechanism (25, 41), said lock state being adjusted by an inclined posture in which said lock release lever (31, 44) lies in an oblique downward direction and said lock release state being adjusted by a horizontal posture in which said lock release lever (31, 44) is rotated in an upward direction from said inclined posture; and a hand hold part (35, 48) is provided at the front of each of said consoles (20, 36) and above each of said lock release levers (31, 44) to cause said console (20, 36) to swing in the upper-lower direction in said lock release state in which the fixation of said console (20, 36) is released by said lock release lever (31, 44).