The utility model discloses a dual-power low-power-consumption self-programming data-collecting and -transmitting module including a dual-power power supply control circuit including a main power supply, a standby power supply and a magnetic latching relay connected with the main power supply and the standby power supply at the same time and used for switching a power circuit. The magnetic latching relay is connected with a relay driver chip and is controlled by the relay driver chip. At the same time, the relay driver chip is connected with a single-chip microprocessor. And the main power supply or/and the standby power supply is/are connected with the single-chip microprocessor through an electric quantity detection circuit and transmits/transmit electric quantity state of the main power supply or the electric quantity of the standby power supply to the single-chip microprocessor. The dual-power low-power-consumption self-programming data-collecting and -transmitting module provided by the utility model has advantages that the power consumption is extremely low, so that the dual-power low-power-consumption self-programming data-collecting and -transmitting module is suitable for field application for a long time and the long-term stable operation of data collection is guaranteed; the universality is high, so that the dual-power low-power-consumption self-programming data-collecting and -transmitting module is suitable for a plurality of sensors; and a power switching circuit is simple in design and is only composed of the magnetic latching relay and the relay driver chip.