The invention discloses a safe monitoring system which comprises a monitoring terminal and at least one monitoring receiving device arranged on a monitoring object, wherein the monitoring terminal is used for regularly scanning the monitoring receiving device, and judging whether the monitoring object corresponding to the monitoring receiving device is in a preset monitoring range; the monitoring receiving device is used for being connected with the monitoring terminal or returning answer signals to the monitoring terminal; the answer signals comprise identification codes of the monitoring receiving device. The invention also discloses a safe monitoring method. The safe monitoring system is easy to carry and low in production cost, and can realize real-time monitoring on a target person or a target object within a certain range.