The invention discloses a capacitance voltage division type high voltage measuring device capable of adjusting a voltage division ratio. The capacitance voltage division type high voltage measuring device solves the problem of the existing device that a secondary output voltage cannot be adjusted when carrying out high voltage measurement. The capacitance voltage division type high voltage measuring device comprises a series high-voltage capacitor bank (2), a voltage measuring instrument and an inverted metal bucket base (6), wherein an insulating cylinder (8) is embedded in an inner cavity ofthe inverted metal bucket base (6), a cylindrical metal ring (9) is embedded in a center hole of an insulated annular supporting platform (17), a metal selector rotating shaft (16) is movably arranged in a ring of spring contact fingers (14), the lower end of the metal selector rotating shaft (16) is connected with a transformation ratio adjustment insulate handle (4), and low-voltage capacitors(11) with different capacities are arranged on the inner cavity wall of the insulating cylinder (8) above the insulated annular supporting platform (17) at equal interval radians, so that the switchedaccess of the low-voltage capacitors (11) with different capacities is realized by rotating the metal selector rotating shaft (16), thereby achieving the purpose of changing the voltage division ratio.