To provide a yarn winding machine capable of detecting the state of the yarn wound excessively by a yarn accumulating roller.

This fine spinning machine 1 includes a winding device 12 adapted to wind a traveling yarn and a slack eliminating device 8 adapted to temporarily accumulate the yarn to be wound by the winding device 12. The slack eliminating device 8 includes a slack eliminating roller 30 (yarn accumulating roller) which is rotatable and around which the yarn is wound and a sensor 37 adapted to detect the excessively wound state in which the yarn is wound around the slack eliminating roller 30 to a range beyond a yarn accumulating portion 40 (normal winding range).