A cathode plate is invented, which can avoid the occurrence of irregular stripping end face. On the top of the cathode plate and close to electrolyte level fluctuation line is designed an insulating strip embedded inside the cathode, the surface of which is kept in level with or below the cathode surface. During the metal deposition and electrowinning, due to the presence of the insulating strip, the deposited metals will form regular end face on the edge of the insulating strip no matter how much the electrolyte level is fluctuated so as to facilitate the stripping tool to insert into the gap between the deposited metal ad cathode and effectively separate the deposited metals and cathode.