The invention discloses a comprehensive voltage sag treatment method for a high-quality power park. The method comprises the following steps that A) a wave recorder records abnormal voltage waveform of an electric energy quality monitoring point in the power park; B) the recorded abnormal voltage waveform of the electric energy quality monitoring point is analyzed to obtain the sag depth of the voltage waveform of voltage sag; C) sensitive users in the high-quality power park are graded according to tolerance to voltage sag; and D) according to an analysis result, one voltage sag treatment measure which can satisfy requirements of the sensitive users and is highest in economical performance is selected from multiple voltage sag treatment measures to implement treatment. The comprehensive voltage sag treatment method can be used to make rapid response and treat voltage sag, guarantee is provided for safe and economic operation for the voltage sag sensitive users, and the method has good application prospects.