Abstract: The paper introduces a method for the optical design software package OCAD to link and exchange data with other frequently used optical design softwares developed both in China and other countries, such as CodeⅤby ORA and Zemax by Focus Software in US,as well as Oslo, LENSVIEW, ASAP,TRACEPRO and domestic software SOD88. In addition to the basic functions of the optical design software, the OCAD optical design software package could call the abovementioned design softwares on its function interface, implement links and data exchange between different softwares. It can also link and interact with frequently used word processing programs or operational chart programs, such as Word and Excel. By combining available functions and characteristics in the existing softwares, what we need to do is just to develop a professional software aiming at our specific requirement. Based on Chinese standards (GB), industry standards and enterprise standards, the optical design software package OCAD is developed.