The main difference between punching pile and impact pile lies in the construction method and principle. Punching pile is to drill a hole in the ground with a drilling machine, then set a reinforcing cage in the hole, and finally pour concrete to complete the construction of pile foundation. Impact pile is a continuous impact along the pile axis with a heavy hammer or vibrating hammer, and the precast pile or steel pipe pile is directly driven into the soil without drilling first. The construction methods and principles of punching pile and impact pile are different, and they have their own advantages and disadvantages under different engineering scenes and geological conditions. Punched pile is suitable for strata with good soil quality and high bearing capacity, and has little impact on the surrounding environment during construction. However, the construction speed of impact pile is fast and the cost is low, but it may have a great impact on the vibration and noise of surrounding buildings. When selecting the pile foundation type, it needs to be considered comprehensively according to the engineering site, geological conditions and design requirements. If necessary, please consult a professional civil engineer or relevant department.