The invention discloses a capacitance electronic type fuel sensor, comprising a capacitance sensing unit, a capacitance measurement unit and a capacitance/liquid level conversion unit, wherein the capacitance sensing unit is a composite tubing capacitance element, comprising a metal external tube and a metal internal tube, and the metal external tube and the metal internal tube compose the a fuelliquid level sensor capacitor; the capacitance sensing unit is used for conversing fuel liquid level into a relevant capacitance value; the metal external tube and the metal internal tube of the capacitance sensing unit are respectively connected to an input terminal of the capacitance measurement unit by lead; the capacitance measurement unit is used for measuring a capacitance value of the capacitive sensor unit; and the capacitance/liquid level conversion unit is electrically connected to the capacitance measurement unit, for conversing the capacitance value form the capacitance measurementunit into liquid level. The sensor of the invention is simple and easy to manufacture, resolves common oversized distribution parameter in the capacitance fuel sensor and not-easy accurate measurement of the capacitance parameter.