The invention discloses a low-power-consumption and high-voltage driving circuit and a two-way P-type switching tube used by the same. The two-way P-type switching tube is provided with two eudipleural drift regions and thinner field oxygen used as gate oxide, so that the switching tube can be used for realizing high-efficiency high-voltage-resisting two-way transmission. The low-power-consumption and high-voltage driving circuit is additionally provided with one two-way P-type switching tube disclosed by the invention on the basis of a traditional high-voltage driving circuit and is externally connected with a capacitor C during system application. By virtue of starting the two-way P-type switching tube, the traditional high-voltage driving circuit can charge the externally-connected capacitor C, and the charged capacitor C is used for discharging the high-voltage driving circuit, so that the high-voltage driving circuit can operate, and therefore the energy loss of the whole circuit can be reduced. Compared with the prior art, the low-power-consumption and high-voltage driving circuit has the advantages that the energy recovery efficiency of the whole circuit can be improved and meanwhile the energy loss of the whole circuit is reduced.