The related magnetic track position navigation magnetic sensor comprises: two magnetic detectors as the coil detector and the Hall element detector; and the circuit included a magnetic resistance coil output amplification circuit (3) and a Hall element output amplification circuit (6), wherein the coil detector comprises a magnetic resistance coil (1) with ends connected to the input end of (3) and an iron core (5); the output end of Hall detector connects with the input end of (6), and the output of amplification circuit connects with control computer of vehicle auto-drive system through A/D conversion. Compared with current product, this invention reduces cost greatly.