Abstract: An apparatus and method for interconnecting pipes, and a method for manufacturing a jaw of a jaw holder An apparatus/method are provided. The pipe connecting apparatus includes a pipe connecting member installed at a location where two pipes are interconnected, one or more jaw holder that are fixedly inserted into respective opposite end portions of the pipe connecting member in a state where they are respectively interposed between the pipe connecting member and the pipe and between the pipe connecting member and the pipe and provided with a plurality of jaw mounting holes that are formed along an outer circumference and spaced apart from each other at predetermined intervals, one or more jaws that are pivotally inserted into the respective jaw mounting holes and press and fix the pipes inserted into the jaw holders by being depressed by an inner wall of the pipe connecting member, and one or more elastic members that are installed in the pipe connecting member to elastically support the jaws.