With　the　deepening　of　the　integration　of　information　technology　and　industrialization,　industrial　control　systems　of　computerized　numerical　control　(CNC)　machines　is　gradually　changed　from　the　original　isolated　closed　mode　into　the　Internet　model.　It　is　not　only　facing　the　internal　threat,　but　also　facing　the　threat　from　the　Internet.　The　existing　industrial　control　system　of　CNC　machine　is　due　to　long-Term　in　a　closed　environment.　The　system　cannot　be　updated　in　time;　it　is　difficult　to　defend　against　the　threat　of　industrial　networks　from　the　Internet.　In　view　of　the　above　problems,　this　paper　firstly　puts　forward　the　security　and　trusted　framework　for　CNC　machine　control　system　based　on　trusted　computing　technology,　and　elaborates　the　frame　composition　and　function　principle　in　detail.　Then,　the　module　of　the　trusted　communication　monitoring　and　control　for　the　control　system　of　CNC　machine　is　presented;　it　can　realize　the　scalability　of　the　CNC　machine　system　and　the　correlation　of　the　equipment,　while　satisfying　the　trusted　measurement　function.　Finally,　this　paper　analyzes　the　reliability　of　the　traditional　CNC　machines　by　means　of　experimental　simulation.　The　performance　shows　that　in　the　controllable　range,　the　proposed　framework　can　effectively　enhance　the　CNC　machine　computing　environment　security.　©　2017　Totem　Publisher,　Inc.　All　rights　reserved.