On the basis of a comparative analysis of the advantages and disadvantages of three types of existing laser detection technology, the relative matured non-imaging spectrum recognition technology was chosen to enhance the effect-cost ratio. CPLD and DSP were applied in the signal processing chips, together with compiling of corresponding software algorithm. The 10-path dual-channel optical system can execute a 360-degree detection at the wavebands of 1.06 μm and 1.54 μm. The binary-related detection technology is utilized to maximize detection probability and to minimize false alarm probability.