This study introduces a new approach of parking system by using wireless sensor network technology equipped with ultrasonic sensor. The system also implements shortest path algorithm to calculate the shortest distance from the parking berth to the nearest preferred entrance. The system operate by monitoring the availability of the vehicle berth and making the informationcollected available for patrons and car-park operator. The information gained from the detection sensor and calculation from the shortest path algorithm is uaed to guide patrons to parkingberth. The car-park operators use the sensor' information to aid in overall management and planning. WSN is chosen since it enables reliable information gathering and measurement to be transmitted through wireless channel without having to install new cabling for network and electricity to reach each sensing davice.