To provide a collision shock-absorber equipment for a vehicle capable of dampening collision occurring when a personal vehicle and another vehicle collide to each other with a part of collision energy during a collision of the vehicles being applied as a kinetic energy of the personal vehicle.

The collision shock-absorber equipment for a vehicle is provided with a right side collision detecting sensor S1, a left side collision detecting sensor S2, and further comprises an electric control unit ECU for controlling an operation of an inflator for each of the under-air bags 13, 16 in response to a signal from each of the sensors S1, S2. Both under-air bags 13, 16 are a friction resistance reducing means for use in reducing a frictional resistance between vehicle tires TR, TL and a road surface G through both operations. When it is determined that the vehicle is in a collision state, the electric control unit ECU operates both under-air bags 13, 16.