The working principle and application fields of the ultraviolet radiometer are expounded. Aiming at the work requirements which can be used easily and quickly, the design method of the measurement and control system for the ultraviolet radiometer based on ARM processor LPC2148 is introduced，the hardware and software of this system are designed. In the system debugging，the validity of the measurement and control system for the ultraviolet radiometer are validated by combining with the changeable energy ultraviolet source. Based on ARM processor, the hardware interface is simple and the software programming is easy, which can meet the work requirements of ultraviolet radiometer.