Apparatus and method for dynamic pile load test

An apparatus and a method for testing dynamic pile load are provided to measure various data according to the depth of the ground by using a measurement gauge inserted into a pile below the ground. An apparatus for testing dynamic pile load comprises a drop hammer(100) having at least one mat(112), and a main frame(310) that receives the head of a pile. A hydraulic device(200) fixes/releases the drop hammer(100) at/from a predetermined position spaced apart from the head of the pile by a certain interval by using oil pressure. The hydraulic device(200) is fixed at a certain height by the main frame(310). The drop hammer(100) is obtained by stacking flat mats. The mat has a flat rectangular shape and has guide grooves at the central portions of each side thereof. Guide rails(331) are installed at the four sides of the drop hammer(100) to guided a drop path of the drop hammer(100).