The present article is intended to provide a universal interface for the measurement of electric cycle. In this interface, an INTEL 8253 chip and a few electronic components are used. This interface is characteristic of high accuracy, wied measuring range as well as fast response and can meet the requirements of electric cycle measurements in the industrial process and scientific experiments. The composition, working principle and the main specifications of the interface are dealt with briefly and the program offered at the end of this paper will help you to understand and use the interface in your practice.