A high-frequency body modal resonator test method based on half-frequency electrostatic excitation comprises an open-loop test method and a closed-loop test method. The open-loop test method is suitable for calibration test of a high-frequency body modal resonator in a laboratory environment; and the closed-loop test method is suitable for practical application of the high-frequency body modal resonator in an industrial field. Through adoption of a principle of a half-frequency wave electrostatic excitation resonator, a feed through current is reduced to two divided-frequency, a dynamic current generated through vibration of the resonator is still an original frequency, the feed through current and the dynamic current are isolated at different frequency bands, noise brought by the feed through current can be eliminated through an external circuit, so that a resonator test signal to noise ratio is greatly improved and performance parameters of a silicon micro oscillator are improved.