PROBLEM TO BE SOLVED: To provide an in-pipe moving device capable of moving inside a pipe having a branch part, a bent part, an irregularity, a portion where the inner diameter greatly changes, etc. and an in-pipe moving device insertion method.SOLUTION: The in-pipe moving device comprises: a cylindrical guide jig； an operation mechanism for operating movement of the front end of the guide jig； and an insertion rod to be inserted into the guide jig. The guide jig has a first guide hose, a hose tip part at the front end of the first guide hose and multiple wires along the first guide hose. The in-pipe moving device insertion method to insert the in-pipe moving device having the cylindrical guide jig whose front end bends and the insertion rod which can be inserted into the guide jig comprises the steps of: inserting the guide hose in a pipe； bending the front end of the guide hose； and delivering the insertion rod from the inside of the guide hose.
