Abstract: The characteristics and commercial application of Lurgi`s methanol-to-propylene (MTP) technology in Shenhua Ningxia Co, Ltd. was introduced. Through the technical improvement and optimization, some of the problems in this process, such as the cavitation of chilling water pump, the over standard Na+ amount in process steam and water in propylene were solved, resulting in improved capacity of the process steam tower and full load operation of the MTP device. But there are still some problems in the process: the complex structure of MTP reactors, the uneven distribution of materials, and the insufficient capacity of the process steam tower. The industrial operation results show that the propylene yield is about 1.5 %~9.8 % lower than the designed value, while the yields of liquefied petroleum gas and fuel gas are higher. Gasoline fraction obtained from Lurgi’s MTP reaction is characterized by low normal alkane and high aromatic content. The composition of the MTP gasoline is quite different from that of the conventional FCC gasoline. The total life of MTP catalyst is less than 8 000 h, and its regeneration cycles is only about 640-700 h.