The auxiliary technological process of automatic container terminal has the characteristics of low degree of automation and high safety risk. It is a weak link in the production of automated container terminal. Reasonable design of auxiliary technological process is of great significance to improve operation efficiency and safe production. Combined with the construction cases of Guangzhou Nansha phase IV and Qinzhou Dalanping automated container terminals，the similarities and differences of the two auxiliary technological processes are compared and discussed for the key links. The construction practice shows that the auxiliary technological process of the automated container terminal needs to be designed in combination with the overall layout，process equipment and supporting infrastructure.