In order to study laser array in the whole atmosphere turbulence coherent imaging ability, on the basis of all phase method such as closure, the atmospheric refractive index structure constant of HV57 model is used to calibrate the atmospheric coherence length, through the local wind speed and light road height to calculate the experimental parameters, such as local equivalent whole layer of the atmospheric turbulence level transmission distance. A laser coherent emission array with a diameter of 1.5 m equivalent aperture is developed, and the imaging experiment of a 1.2 km distant object is carried out. The imaging resolution reaches sub-arcsecond level. It is verified that the laser coherent array imaging system can suppress the influence of atmospheric turbulence and provide theoretical and technical support for the development of solid laser coherent array imaging system in the future.