PROBLEM TO BE SOLVED: To enable an access point device, that is a work machine, and a portable terminal to easily perform radio communication, and also to easily acquire a state of the work machine.SOLUTION: An access point device 4 for work machine which is attached to a work machine 2 and connects the work machine 2 and a portable terminal 3 by radio communication, comprises: a storage unit 32 which stores a predetermined identifier a state acquisition unit 33 which acquires a state of the work machine 2 an information addition unit 34 which, on the basis of the state of work machine acquired by the state acquisition unit 33, adds status information indicating the state of the work machine to a transmission signal including the identifier and a communication unit which transmits the transmission signal to which the status information is added, to the portable terminal 3.