The invention discloses a gas discharge electrode structure. The shape of an electrode downstream side is correspondingly adjusted and changed according to the outgoing direction of the electrode downstream side, so that the electrode upstream side and the electrode downstream side are in an asymmetric shape. According to the gas discharge electrode structure, the distribution of an aerodynamic flow field close to an electrode in a chamber is effectively improved, the discharge heat accumulation close to the electrode is reduced, the service life of the electrode is prolonged, so that the stability of system high-voltage discharge is improved; and electrode structure for gas discharge is simple in structure, and convenient to process and install.