A control system for umbrella drill is developed to improve the construction safety of vertical shaft by drilling and blasting method and to realize automatic construction of umbrella drill. Firstly, the control targets such as function and structure of umbrella drill are introduced. And then the hardware of the control system, movement control algorithm and humanmachine interface software, and functional application of Unity3D are presented and described. Several drilling tests have been carried out on the umbrella drill with the control system, and the results show that: (1) The function, efficiency and accuracy of the system meet the design requirements, which can help to realize automation of drilling and improve construction safety. (2) By applying Unity3D, the arm information of the umbrella drill can be obtained easily, which can help reduce the interference rate of the arm.