The bottom loading arm is designed to load and unload gasoline, diesel and other fuels. The hard pipe enables the hose to move up and down, left and right, which eliminates hard physical work for the operator. The bottom loading arm can be operated at ground level without build a loading platform, and can accommodate the widest range of working envelopes. Besides, multiple fluids can be loaded at the same side. A variety of configurations are available, such as parking standpost, break-away coupler, proximity switch, etc.