The design of efficient matched mirrors and arrays for small angle LED is introduced. The matched mirrors include a light emitting chip, a reflector and a receiving lens. The scattering light emitted from the light emitting chip is focused by secondary match of the reflector and lens. The LED arrays are generated by permutation of several matched mirrors. The design scheme and simulation results are also presented. By the repeating technological tests and batch production tests, the design scheme of LED efficient matched mirrors and arrays is valid and feasible. The advantages of this scheme are the highly efficient collection of the light energy and the almost concentrated radiant angle. The light extractive efficiency has been greatly improved, and the secondary matched optical modules are easy to install with small size. The LED arrays provide a uniform area array illumination in the long distance, which is particularly suited to uniform illumination for middle & long distance.