The utility model discloses a prefabricated shock attenuation component of assembly type structure, comprising a base plate, the upper end of bottom plate is fixed with the second fixed block, the both sides of second fixed block all are equipped with two sleeve pipes that are parallel to each other, the intraductal bottom of cover is fixed with the 2nd damping spring, the 2nd damping spring's upper end is fixed with the clamp plate, the upper end of clamp plate is fixed with the depression bar, the upper end of second fixed block is equipped with adjusting device, adjusting device's upper endis fixed with first fixed block, all be equipped with corresponding arc -shaped limiting groove on first fixed block and the second fixed block, be equipped with second screw thread through -hole onthe first fixed block, it is equipped with the screw rod to run through in the second screw thread through -hole. The utility model discloses a to the stablizing the centre gripping and with fixed, can adapt to the not pipeline of equidimension simultaneously of connecting tube, and take precautions against earthquakes can the reinforce, the fastness is high, and for this reason, we have proposeda prefabricated shock attenuation component of assembly type structure and have solved above -mentioned problem.