To solve problems wherein a conventional configuration related to a window opened and closed automatically using various sensors and a remote operation switch cannot achieve other purpose (purpose for locking and unlocking the window) to leave room for improvement, cannot provide allowance related to crime such as theft, burglary, etc., and remains as one-sided improvement.

In this automatic opening and closing system of the window for automatically controlling locking and/or opening and closing of the window provided with a locking and unlocking mechanism provided with a lock part for locking and/or unlocking provided on the window and a first control part for operating the lock part, a window opening and closing mechanism for opening and closing the window, and a second control part for operating the window opening and closing mechanism, the lock part is controlled by moving the locking and unlocking mechanism and the window is arbitrarily controlled by the window opening and closing mechanism.