Abstract: A working machine includes: a working machine body; a first working unit (boom) having one end connected to the working machine body, and configured to be displaced relative to the working machine body; a second working unit (arm) connected to another end of the first working unit via a link; a third working unit (bucket) connected to the second working unit via a link; an image capturing unit provided on the working machine body, and configured to capture an image of one end of the second working unit that is located near the first working unit; and a position detecting unit configured to detect a position of another end of the second working unit that is located near the third working unit based on the image captured by the image capturing unit.