This paper describes a new short-wavelength ultraviolet communication transceiver system,which is steady and practical ,based on digital technology applying to a real engineering. The low-pressure mercury lamp is used as ultraviolet (UV) source in the system,and field programmable gate array (FPGA) as the core controller integrates for state controlling,data exchanging,modulating and coding. The system has excellent advantages in antijamming ability,maintaining and improvement upgrade. At last,the experiment results illustrate the stable transceiver system is suitable for real-time speech communication in short distance. The fact shows that the short-wavelength ultraviolet communication system can get a data rate of 2.4 kbit/s in the range of 200 m.