The invention provides a double-station turnover welding robot, and relates to the field of welding robots. The double-station turnover welding robot comprises a control base, a track plate is fixedlyarranged above the control base, a protruding track is fixedly arranged above the track plate, control tables are arranged on the two sides of the protruding track, an operation table is fixedly arranged at the center of the upper portion of the control base, a mechanical arm is arranged above the operation table, each control table comprises a movable table and a turnover table, and each movabletable comprises a movable table machine shell. According to the double-station turnover welding robot, the two control tables are installed, so that the welding efficiency is higher, a driving wheelis installed so that the control tables can freely slide on the protruding track so as to adjust the working angle, then the operation table is more flexible, the welding angle range is wider, a firststeering motor and a second steering motor are installed so that the mechanical arm can be adjusted to different angles, and the requirements of welding at different angles can be met.