ABSTRACT : This paper comes up with the boat localisation based on the RSSI(Received signal strength indication) technology .This paper focuses on the boat localisation that is finding the location of the boat irrespective of the climatic conditions and border identification that is guiding the boat about the border and making the boat not to cross the border by turning off the engine .The proposed system comprise of Arduino MEGA, RSSI zigbee, DC motor and the monitoring will be done by the PC in the control room This system gives three kind of alerts to the fisherman in the boat .The first alert will be given in the form of message .The second alert is if the distance between the fisherman and the border does not decrease despite of the alert message then the APR voice will alert the person that there is a border at a certain distance ahead .The third alert will be in the form of action that is the boat engine will be turned off so that he cannot cross the border.