The present invention relates to a square cage culture farm for the notification of an unusual condition. The cage culture farm comprises: at least one square fishing net which is formed in a square shape when looked down above the water and has a structure to drop an anchor from one side edge at least one sensor which is hung on the anchor and arranged on the outside of each square fishing net and senses underwater ecological environment information in real time a sensor node which has location information and identification information and receives the ecological environment information sensed by the sensor a gateway part which receives the ecological environment information, location information, and identification information from the sensor node and converts the protocol or bandwidth and a server which receives the ecological environment information, location information, and identification information via the gateway part, determines whether there is an unusual condition of the ecological environment information in a position where the sensor is arranged, and transmits information to a set user terminal when an unusual condition occurs. According to the present invention, the cage culture farm allows a marine sensor grid infrastructure to be established and can quickly notify an unusual condition to the land over a water surface network when the unusual condition occurs. In addition, the cage culture farm can form a network by a DASH7 communication technique when an unusual condition occurs, thereby remedying the disadvantages of Zigbee, CDMA and satellite communications and offering a low power wireless communication which secures a long communication distance, a low interference level and high reliability in comparison with Zigbee.본 발명은 이상상황 알림을 위한 사각형태의 가두리 양식장에 관한 것으로, 수면 위에서 내려다볼 때 사각형태로 형성되어 있고, 일측 모서리에서 닻을 내리는 구조를 갖는 적어도 하나의 사각 어망 사각 어망의 각각의 외부에 배치되되 닻에 매달아 배치되고, 수중의 생태환경정보를 실시간으로 센싱하는 적어도 하나의 센서 위치정보 및 식별정보를 갖고, 센서가 센싱한 생태환경정보를 수신하는 센서 노드 센서 노드로부터 생태환경
