Amphibious Excavator can walk and work in soft terrains or swampy area, because the chassis crawler floats on sealed pontoons. It may swing or even roll over when excavating with no support underneath. It moves using a dual-body boat form buoyancy tank. A reducer drives the crawler chain, allowing free and smooth movement. Its upper structure is a modified excavator that allows 360° full rotation and hydraulic operation. The pontoons are manufactured from high tension steel and they are resistant atmospheric corrosion and saltwater. Each pontoon has 5 independent water tight compartment with maintenance hole. The bottoms of the pontoons are reinforced for rough terrain operation. The power for the pontoon tracks is provided by an excavator engine and mainhydraulic pumps with traveling motors. NTL Amphibious Excavator was well designed to walk and work in soft terrain or swampy area, where traditional excavators cannot move on it.