Objective To study the methods of reducing the shock response of surface ship crew by under water explosion. Method The shock response lumped parameter models were established to study the influence on surface ship crew with different structure parameters in standing, sitting and walking posture. Results For ship crew with sitting posture, the shock response of the pelvis could be reduced by enlarging the damping ratio and stiffness ratio between the deck and the chair. For ship crew with both standing posture and walking posture, the shock response of the limb could be reduced by enlarging the damping coefficient of the deck. Conclusions By adding anti shock chairs or laying anti-shock material on the deck, the damping ratio and stiffness ratio between the deck and the chair, or the damping coefficient of the deck could be enlarged, and the shock response of the surface ship crew could be reduced.