SHOVEL

A technique in an excavator by which the positional relationship between the own machine and an object around the own machine can be reliably identified, is provided. The excavator 100 according to an embodiment of the present disclosure includes the lower traveling body 1, the upper turning body 3 that is turnably mounted to the lower traveling body 1, the imaging device S6 that is mounted to the upper turning body 3 and acquires information representing the status around the own machine, and the controller 30 that recognizes a reference object that is in a stopped state or at a fixed position around the own machine based on the information acquired by the imaging device S6 and estimates the turning angle of the upper turning body 3 based on the change in the position of the reference object as viewed from the upper turning body 3. The excavator 100 according to another embodiment of the present disclosure includes the controller 30 that recognizes an object around the own machine and recognizes the position of the own machine with respect to the recognized object based on image information acquired by the imaging device S6.