Now a days we come across a news that many Tamil fishermen are arrested by Sri Lankan navy and even killed. The sea border between the countries is not easily recognizable, which is the main reason for this cross-border cruelty. Here we have created an embedded system that protects fishermen by notifying them of the border via Global Positioning System (GPS). We use a GPS receiver to determine the current location of the fishing vessel or vessel. Using GPS we find the current latitude and longitude and send it to the microcontroller device. The controller then finds the current location by comparing the current latitude and longitude values ​​with the given value. Then, as a result of the comparison, this system makes the fishermen aware that they are approaching the sea border. The area is divided into four zones: the normal zone, the warning zone, the zone close to the restricted zone and finally the restricted zone. When the boat is in the normal zone, the LCD will show the normal zone. That way they can tell the boat is in the normal range. When it moves further and reaches the warning area, the warning area will be displayed on the LCD screen. If the fisherman ignores the warning or does not see the indicator and moves on, and if the boat enters a zone closer to the restricted zone, the alarm is activated and the speed of the boat's engine is automatically controlled at 50%. If the fisherman did not respond to the alarm and moves on, the boat will move into the restricted zone, the alarm will sound as before, and touching the restricted zone, the boat's engine will turn off, checking the engine's fuel supply.