The invention relates to a line guiding device (16) for guiding at least one supply line (17) along a robot arm (5), having a supply line (17); a spring device (25) which is designed to automatically return the supply line (17) from an extended state of the supply line (17) to a retracted state of the supply line (17) by means of spring force; a front end portion (25a) and a rear end portion (25b) when seen in the extension direction (A) of the supply line (17); a spring device seat (26) which is rigidly connected to the supply line (17) and on which the rear end portion (25b) of the spring device (25) is mounted; a counter-bearing seat (28) on which the front end portion (25a) of the spring device (25) is mounted; a securing device (32) which is designed to secure the line guiding device (16) to an element (G1-G7) of the robot arm (5); and an adjusting device (30) which supports the counter-bearing seat (28) and which is designed to movably support the counter-bearing seat (28) relative to the securing device (32). The invention further relates to a corresponding industrial robot (1).