Spring power hammer

The invention belongs to the technical field of building construction, and particularly relates to a spring power hammer which comprises a box body, a hammer head and a driving mechanism for controlling the hammer head to reciprocate, and is characterized in that a rack is mounted in the box body, the hammer head is mounted on the rack in a sliding manner, and in an initial state, one end of the hammer head extends to the outer side of the box body; the driving mechanism comprises a motor driving assembly used for controlling the hammer head to slide towards the middle of the box body, and a spring reset mechanism used for controlling the hammer head to recover to the initial state, so that the hammer head is controlled to do periodic reciprocating motion, and the hammer head impacts the wall. The invention aims to mechanically control the hammer head to generate periodic impact on the wall surface, simulate the effect of manually knocking the wall surface, and utilize machinery to replace manpower, thereby e