A damping force generation device for a vehicle, comprising: a shock absorber comprising: a cylinder; and a piston fitted into the cylinder in a reciprocally movable manner to form two cylinder chambers (68, 70) in cooperation with the cylinder, the shock absorber being coupleable to one of a sprung member and an unsprung member of the vehicle at a rod part of the piston, and to another one of the sprung member and the unsprung member at the cylinder; the sprung member being kept substantially electrically insulated from a road, and the shock absorber being configured to generate a damping force due to a flow resistance when a working liquid passes through an orifice (80A, 82A) formed in a main body part of the piston to move between the two cylinder chambers (68, 70) along with relative displacement between the sprung member and the unsprung member; characterized in that said damping force generation device comprises a self-discharge type charge eliminator (90A-90E) provided on a surface of a specific member comprising at least one of a member constructing the shock absorber or an auxiliary member (58, 60) connected to the shock absorber, and the self-discharge type charge eliminator (90A-90E) comprising an air-ion conversion self-discharge type charge eliminator configured to reduce a charge amount of positive electric charge, which is charged to the specific member, through diselectrification carried out by changing air around the air-ion conversion self-discharge type charge eliminator into negative air ions depending on the charge amount of the specific member, and by causing the negative air ions to be attracted to the positive electric charge of the specific member to neutralize the positive electric charge, to thereby reduce a charge amount of the working liquid. a shock absorber comprising: a cylinder; and a piston fitted into the cylinder in a reciprocally movable manner to form two cylinder chambers (68, 70) in cooperation with the cylinder, the shock absorber being coupleable to one of a sprung member and an unsprung member of the vehicle at a rod part of the piston, and to another one of the sprung member and the unsprung member at the cylinder; the sprung member being kept substantially electrically insulated from a road, and the shock absorber being configured to generate a damping force due to a flow resistance when a working liquid passes through an orifice (80A, 82A) formed in a main body part of the piston to move between the two cylinder chambers (68, 70) along with relative displacement between the sprung member and the unsprung member; characterized in that a cylinder; and a piston fitted into the cylinder in a reciprocally movable manner to form two cylinder chambers (68, 70) in cooperation with the cylinder, the shock absorber being coupleable to one of a sprung member and an unsprung member of the vehicle at a rod part of the piston, and to another one of the sprung member and the unsprung member at the cylinder; the sprung member being kept substantially electrically insulated from a road, and the shock absorber being configured to generate a damping force due to a flow resistance when a working liquid passes through an orifice (80A, 82A) formed in a main body part of the piston to move between the two cylinder chambers (68, 70) along with relative displacement between the sprung member and the unsprung member; characterized in that said damping force generation device comprises a self-discharge type charge eliminator (90A-90E) provided on a surface of a specific member comprising at least one of a member constructing the shock absorber or an auxiliary member (58, 60) connected to the shock absorber, and the self-discharge type charge eliminator (90A-90E) comprising an air-ion conversion self-discharge type charge eliminator configured to reduce a charge amount of positive electric charge, which is charged to the specific member, through diselectrification carried out by changing air around the air-ion conversion self-discharge type charge eliminator into negative air ions depending on the charge amount of the specific member, and by causing the negative air ions to be attracted to the positive electric charge of the specific member to neutralize the positive electric charge, to thereby reduce a charge amount of the working liquid. the self-discharge type charge eliminator (90A-90E) comprising an air-ion conversion self-discharge type charge eliminator configured to reduce a charge amount of positive electric charge, which is charged to the specific member, through diselectrification carried out by changing air around the air-ion conversion self-discharge type charge eliminator into negative air ions depending on the charge amount of the specific member, and by causing the negative air ions to be attracted to the positive electric charge of the specific member to neutralize the positive electric charge, to thereby reduce a charge amount of the working liquid.