The development of gas-based direct reduction process can promote the transformation of enterprise energy structure. In order to ensure the smooth implementation of the gas-based direct reduction process，coke oven gas is used as the reduction medium to carry out the research on optimized ore proportioning of pellet. The basic properties of 4 kinds of fine powder are studied，and 3 kinds of fine powder are selected for pelletizing and roasting tests of single ore. Based on the composition，basic properties and compressive strength of single-fired pellets of fine powder，5 ore proportioning schemes are formulated and optimized to comprehensively evaluate the metallurgical properties of pellets. The results show that the 60% Shanxi + 10% Inner Mongolia + 30% Hebei ore proportioning scheme has the best performance，so the pellets with the ore proportioning structure and the pellets used for direct reduction are used for the shaft furnace cage comparison test， and the test results show that the metallization rate，carbon content and size fraction indexes are meet the requirements of direct reduced iron product. The results also show that the proportioning scheme can meet the needs of the gas-based direct reduction process，and the reliability of the comprehensive evaluation method for optimizing ore blending and pellets metallurgical properties are confirmed，which lays a theoretical foundation for promoting the development of zero reforming direct reduction process of coke oven gas in China