TJArk was established in 2004 as a part of the Robots and Intelligent Systems Lab of Tongji University in China. The team consists of graduate and undergraduate students. All the members are from School of electronic and information engineering. The TJArk participated in the RoboCup SPL competition from 2006 through 2018. We entered the quarter finals in 2007, 2008, 2016 and the Champions Cup quarter finals in 2017. We finished in the third place in 2018. We are the SPL Champion in RoboCup China Open in latest six years.