Li, Y. Li, Z.P. Peng, J. Wang, S. JACoW Publishing Geneva, Switzerland 2226-0366 978-3-95450-194-6 10.18429/JACoW-LINAC2018-THPO032 English 750-752 THPO032 MMI linac DTL emittance software Contribution to a conference proceedings 2019 2019-01 https://doi.org/10.18429/JACoW-LINAC2018-THPO032 http://jacow.org/linac2018/papers/thpo032.pdf The China Spallation Neutron Source (CSNS) successfully accelerated the H⁻ beam to 80 MeV in January 2018, marking a key progress in the beam commissioning. One of the keys to success is the development and use of software tools. XAL, a Java-based software infrastructure originally developed by SNS was applied for CSNS beam commissioning. We have developed and transplanted many applications based on XAL. Some of the applications for the Linac are described ,and some experiences are shared.