Abstract: According to the statistical data from Boring Boring Machine Branch of China Construction Machinery Association, in 2022, there are 700 fullface tunnel boring machines manufactured in China, and the accumulated sales reaches RMB 24.3 billion. The top three manufacturers with the most fullface tunnel boring machines manufactured are China Railway Engineering Equipment Group Co., Ltd. (CREG) (248), China Railway Construction Heavy Industry Corporation Limited (CRCHI) (232), and CCCC Tianhe Equipment Manufacturing Co., Ltd. (CCCCTianhe) (110), and the top two manufactures with the highest sales are CRCHI (approximately RMB 9.4 billion) and CREG (approximately RMB 8.87 billion). Figs. 1 and 2 show the detail information.