The utility model provides a well drilling induction system and drilling rod relates to the well drilling and measures the field. This well drilling induction system includes direction sensing device,controller, low -power consumption stand -by circuit, first break -make change over switch, second break -make change over switch, wireless communication module and battery, and the controller is used for behind low -power consumption standby circuit conduction, detects wireless communication module and whether receives the enabled instruction, if, then send the first feedback signal to low -power consumption stand -by circuit with the charge -discharge of control low -power consumption stand -by circuit dwelling period nature, and control first break -make change over switch, second break -make change over switch is closed, a controller, direction sensing device can obtain the electric energy and normally work, because controller, sensing device is not power consumptive when wireless communication module did not receive the enabled instruction for the direction, the electric energy when well drilling induction system is in unoperated state has greatly been reduced, energy saving andenvironmental protection, thereby the power consumption cost has been reduced widely, and greatly prolonged the time of endurance of battery.