The present invention relates to a system and a method for checking the position of a pipeline network underground for checking a material and a network structure of a pipe line buried under the ground using the principle of transmission of vibration moving along a pipe line forming the pipe network, which includes: a vibration generating unit for generating vibration in the buried pipe in a state of being connected to the buried pipe constituting the pipe network; a vibration sensing unit connected to the buried pipe while being spaced apart from the vibration generating unit to sense the vibration transmitted from the vibration generating unit along the buried pipe and to output a vibration sensing signal based on the sensed vibration; and an information obtaining unit for monitoring operation states of the vibration generating unit and the vibration sensing unit by mutual communication with the vibration generating unit and the vibration sensing unit. In this case, the information obtaining unit communicat
