Abstract: This paper introduces a new type of photoelectrical spectrometer which features ICP light source connecting with a computer. This equipment uses advanced light-guide fibre technique and pulse technique. BASIC and assemble languages could be jointly used resulting in high accuracy, high precision and high efficiency. It is easy to operate and favourable to extend. Experiment results show that, in comparison with similar foreign equipment, the analytic results of this equipment are in good agreement with that of the foreign equipment and fulfil sensitivity requirements.