Printed circuit board with good protection performance

The utility model relates to the technical field of circuit boards, in particular to a printed circuit board with good protection performance, which comprises a base, a mounting plate and a circuit board body. The circuit board body is mounted at the top of the mounting plate, two sides of the mounting plate are each fixedly connected with two connecting pieces, the top of the base is vertically and fixedly connected with a plurality of limiting rods vertically opposite to the connecting pieces, the connecting pieces are slidably connected to the outer walls of the limiting rods respectively, and the upper ends of the limiting rods are in threaded connection with nuts. When the circuit board body is extruded, the circuit board body installed at the top of the installation plate is buffered and damped, the service life of the circuit board body is prolonged, damping springs arranged on the limiting rods in a sleeving mode can be detached and replaced, and through a damp-proof layer smeared on the top of the ci