To exchange the latest development of the atmospheric remote sensing studies and to nurture international collaboration on tackling emerging theoretical and observational issues on atmospheric science and laser remote sensing, the 4th International Symposium on Atmospheric Light Scattering and Remote Sensing (ISALSaRS’15) will be held in Wuhan, China during the summer of 2015. The symposium welcomes science community to report their latest results and discuss future directions of atmospheric remote sensing with researchers from all over the world.