Abstract: The present invention relates to a system for detecting intrusion in advance using an SMS notification service and a system and a method for notifying a rescue signal, and more particularly, to a system for detecting intrusion in advance using an SMS notification service capable of promptly notifying a situation by transmitting an SMS notification message to a user terminal of a pre-registered recipient while promptly displaying a warning light and propagating an alarm sound to the outside in an emergency situation, and a system and a method for notifying a rescue signal.