In terms of weather modification, detection of cloud droplet particles, which is one of the important measurements, will provides an important reference for artificial weather modification. Digital holographic technology, for that it can realize the three-dimensional particle field measurement and get detail parameters of particle, is widely used in particle measurement along with the high development of modern high resolution CCD and computer technology. In this text , particle of cloud droplet simulated in the laboratory were recorded. By using the in-line digital holographic to obtain the digital holographic image of cloud droplets particles, and single feature parameters (including the shape, size, ovality) of the cloud droplets particles by calculating . It laid a foundation for the future research of cloud group particle characteristics of particle field.