Vehicle navigation pointing device and method

The invention relates to a vehicle navigation pointing device which is composed of a global navigation satellite system (GNSS) module, an acceleration sensor module, an image acquisition module, a processing module, a memory module and an output module. The GNSS module is used for receiving satellite signals of a GNSS system. The acceleration sensor module is used for collecting value of a micro-electromechanical system (MEMS) three-dimensional acceleration sensor. The image acquisition module collects an existing scene image frame through a camera. The process module receives navigation pointing information output by the GNSS module, the value of the MEMS three-dimensional acceleration sensor output by the acceleration sensor and the existing scene image frame output by the image acquisition module, and then inputs the navigation pointing information to an output module. A navigation pointing method of the vehicle navigation pointing device is also put forward. The vehicle navigation pointing device uses the scene image frame of a direction of forward motion of a vehicle to have an integrated calculation with historical navigation pointing information, so that continuous positioning and navigation capability can be provided under the condition of complex road condition which is covered heavily.