A wheel loader including a front working device including a lift arm provided at a front of a vehicle body and rotatable in a vertical direction, comprising: an engine; a variable displacement traveling hydraulic pump driven by the engine; a variable displacement traveling hydraulic motor connected to the traveling hydraulic pump through a closed circuit to transmit driving force of the engine to wheels; a traveling state sensor configured to detect a traveling state of the vehicle body; an operation amount sensor that detects a lifting operation amount of the lift arm; and a controller (5, 5A) configured to control the traveling hydraulic pump and the traveling hydraulic motor, wherein the controller (5, 5A) is configured to determine whether a specific condition for specifying an operation of the lift arm in an upper direction during forward travel of the vehicle body is satisfied or not, based on the traveling state detected by the traveling state sensor, and on the lifting operation amount of the lift arm detected by the operation amount sensor, and control a displacement volume of the traveling hydraulic pump or a displacement volume of the traveling hydraulic motor to limit a vehicle speed by decreasing a maximum displacement volume of the traveling hydraulic pump or by increasing a minimum displacement volume of the traveling hydraulic motor as the lifting operation amount of the lift arm increases, in a case of the specific condition being satisfied and only while the lift arm is completely lifted in the upper direction from a state of having a horizontal attitude. an engine; a variable displacement traveling hydraulic pump driven by the engine; a variable displacement traveling hydraulic motor connected to the traveling hydraulic pump through a closed circuit to transmit driving force of the engine to wheels; a traveling state sensor configured to detect a traveling state of the vehicle body; an operation amount sensor that detects a lifting operation amount of the lift arm; and a controller (5, 5A) configured to control the traveling hydraulic pump and the traveling hydraulic motor, wherein the controller (5, 5A) is configured to determine whether a specific condition for specifying an operation of the lift arm in an upper direction during forward travel of the vehicle body is satisfied or not, based on the traveling state detected by the traveling state sensor, and on the lifting operation amount of the lift arm detected by the operation amount sensor, and control a displacement volume of the traveling hydraulic pump or a displacement volume of the traveling hydraulic motor to limit a vehicle speed by decreasing a maximum displacement volume of the traveling hydraulic pump or by increasing a minimum displacement volume of the traveling hydraulic motor as the lifting operation amount of the lift arm increases, in a case of the specific condition being satisfied and only while the lift arm is completely lifted in the upper direction from a state of having a horizontal attitude. determine whether a specific condition for specifying an operation of the lift arm in an upper direction during forward travel of the vehicle body is satisfied or not, based on the traveling state detected by the traveling state sensor, and on the lifting operation amount of the lift arm detected by the operation amount sensor, and control a displacement volume of the traveling hydraulic pump or a displacement volume of the traveling hydraulic motor to limit a vehicle speed by decreasing a maximum displacement volume of the traveling hydraulic pump or by increasing a minimum displacement volume of the traveling hydraulic motor as the lifting operation amount of the lift arm increases, in a case of the specific condition being satisfied and only while the lift arm is completely lifted in the upper direction from a state of having a horizontal attitude.