The atmospheric coherence length is an important parameter for quantitatively describing the intensity of atmospheric turbulence. In this paper, a real-time turbulence intensity distribution mode varying with height can be established by bidirectionally measuring the atmospheric coherence length along the same slope path, and full-day observation experiments during several days are conducted to verify this method. The accuracy of this method is preliminarily verified by comparing the spatiotemporal distributions of turbulence intensity measured under different weather conditions and analyzing the ratio of atmospheric coherence length measured in multiple days.