The telescopic boom loader is to make the two booms of the forklift into a form that can be extended. When needed, the forklift arm will extend to complete the work that the original forklift arm length cannot reach. When the forklift is not needed The arm retracts to its normal length to facilitate normal work and use. It is suitable for different sites and different industries, instead of labor, and its compactness makes it a true partner for narrow site operations.