In order to realize the real-time monitoring of the spatial and temporal variation of atmospheric aerosol, a data acquisition and remote monitoring system for Mie scattering atmospheric lidar based on B/S architecture is designed. Real time acquisition of atmospheric echo signal is realized by embedded system built with ARM-Linux platform. The echo signal is processed by using Fernald method. The extinction coefficient curve and time-height -indicator (THI) chart are displayed in real time. The proposed design is based on remote monitoring system with B/S architecture. It has characteristics of monitoring platform-independent and location-independent, and the spatial and temporal variation of atmospheric aerosol obtained by Mie scattering lidar all day can be understand more intuitively. Experiments show that the designed system can display extinction coefficient profile and THI figure in real-time, and has good remote control ability.