PROBLEM TO BE SOLVED: To provide an information sharing support device in which an activity amount information can be shared easily among activity amount measuring devices, without making a user operate any device.SOLUTION: A server (30) has: a communication section (301) for acquiring first activity amount information indicating the activity amount of a user A which is measured in an activity amount meter (10A) from a mobile terminal (20A) and a notification control section 322 for generating a notification instruction which instructs the fact that notification in accordance with the first activity amount information is performed and instructs a notification in an activity amount meter (10B) which measures the activity amount of a user B. The communication section (301) transmits the notification instruction to a mobile terminal (20B).COPYRIGHT: (C)2015,JPO&INPIT【課題】ユーザに何らの装置の操作を行わせることなく、活動量計測装置間での活動量情報の共有を容易にすることのできる情報共有支援装置を提供する。【解決手段】本発明の一態様に係るサーバ(30)は、活動量計(10A)において計測されたユーザAの活動量を示す第1活動量情報を携帯端末(20A)から取得する通信部(301)と、第1活動量情報に応じた報知を行う旨を指示する報知指示であって、ユーザBの活動量を計測する活動量計(10B)における報知を指示する報知指示を生成する通知制御部322とを備え、通信部(301)は報知指示を携帯端末(20B)に送信する。【選択図】図1