In order to reduce the influence of background noise in laser detection receiver, a new method of compressing and receiving the forward scattering signal of laser is proposed for the problem of "non-line-of-sight" laser telecommunication. According to the principle of NLOS laser atmospheric scattering communication, the calculation method is introduced. Through the data test and outfield experiment of NLOS laser atmospheric scattering communication, the portable and low power communication range of 1.1 km is realized. The results show that the use of hollow light cone in the NLOS laser atmospheric scattering communication receiver can effectively improve the communication capability, and provide communication support for the troops in the battlefield when they are subjected to enemy electromagnetic interference or electromagnetic silence.