Work machine

A work machine comprising:

• a machine body;
• a work implement attached to the machine body;
• an operation device that is provided in an operation room, and gives an instruction about operation of the work implement according to operation by an operator;
• an informing device that informs the operator;
• an input device for inputting predetermined information;
• a notification device that gives a notification to a worker around the work machine;
• a controller that controls the informing device and the notification device;
• and
• a communication device that communicates with a mobile terminal carried by the worker, wherein
• the controller is configured to
• determine whether or not the communication device has received an approval request for requesting approval of entry into a movable range of the work machine, the approval request being transmitted from the mobile terminal when the worker operates the mobile terminal,
• inform, by using the informing device, that the approval request has been received, when it is determined that the approval request has been received,
• determine whether or not approval operation of approving entry into the movable range of the work machine has been performed on the input device,
• set an interpersonal communication level representing a degree of interpersonal communication between the operator and the worker, depending on whether or not the approval request has been received and whether or not the approval operation has been performed,
• decide a mode of notification by the notification device in accordance with the interpersonal communication level, and
• give a notification in the decided mode of notification by using the notification device.