The RobiX four-wheel differential mobile platform is an indoor and outdoor all terrain differential mobile chassis designed for outdoor off-road, agricultural, and park inspection applications. The RobiX differential chassis is equipped with four sets of DC brushless servo motors, allowing independent speed control of all four wheels. The vehicle’s VCU is based on an ARM-based control board, which not only controls vehicle movement and driving but also directly feeds back wheel speed, battery voltage, and related vehicle status. The vehicle’s communication system is based on a 232 serial port/CAN. We also provide a ROS-based communication package for users to compile and use directly. Based on the RobiX chassis, we can support the development of laser navigation, GPS line following, and various motion control applications.