There are several methods to measure the cloud height, and real-time measurement based on laser technology is the direction of future development. The prototypes or primary products of laser ceilometer are developed at home and abroad. According to the requirement of use, the laser ceilometer should work automatically and continuously in the wild, but the current products still need to be optimized and improved in the adaptation to the environment, job stability, automation, data reliability, size, energy consumption, cost and many other issues. As the core technology unit, laser ceilometer controller is dereloped, so that overall properties are improved. The structure and preliminary technical parameters of the laser ceilomter controller are given, and its data acquisition and processing, display, storage, work process and the software are briefly introduced.