Prof. Xie is the chief engineer of China Grain Wuhan Scientific Research & Design Institute, as well as the Vice Chairman of Food Sub-association of CCOA(Chinese Cereal and Oils Academy).

Prof. Xie has been engaged in R&D, Engineering Design and Technical Services for rice processing industry since 1982, presided over the completion of more than 10 National Key Science and Technology Project on rice processing, draw up or revised over 20 national and international standards, such as “GB/T 1354-2018 Rice”, and ISO  Standard “ ISO7301:2021 Rice-Specification”, etc. Prof. Xie designed or provided technical advice for rice processing enterprises such as COFCO Rice, Jinjian Rice Group, Beidahuan Rice Group, Myanmar Japan Rice Co., Cambodia Rice Co., etc..