A LED directional illumination energy-saving luminaire and a manufacturing method thereof. The luminaire comprises: a circuit board with an X direction and a Y direction defined; and illumination units including a first illumination unit arranged at the center of the circuit board, and two second illumination units arranged at both sides of the first illumination unit. Each illumination unit includes LEDs mounted to said circuit board in a tilted state with said LED bodies positioned at a predetermined height from the circuit board, and said LEDs are arranged at intervals in an array along said X direction and Y direction and distributed with respect to the center of said array. Each LED deviates from both X and Y directions at a predeterminative angle, so that the illumination units can form predeterminative project angles in the X direction and the Y direction respectively.