The utility model relates to a self-lubricating copper bush structure for a pump tile supporting seat of a thrust viscosity pump. The self-lubricating copper bush structure is characterized by comprising an oil guide pipe, wherein the oil guide pipe is connected with a pump tile of a viscosity pump; the pump tile of the viscosity pump is connected with a pump tile supporting seat; the pump tile supporting seat is fixedly connected with a bottom plate through bolts; a longitudinal groove is formed in the pump tile supporting seat; a cooper bush is arranged in the longitudinal groove in a sliding manner; a clamping groove of which the opening direction is the same as the opening direction of the longitudinal groove is formed in the copper bush; a positioning sleeve is arranged at the opening of the clamping groove in a clamping manner; an oil guide channel is formed in the positioning sleeve; a cover plate is arranged at one end of the oil guide channel; the other end of the oil guide channel is communicated with a bottom hole in the bottom of the clamping groove; a protective sleeve is arranged on the outer side of the copper sleeve; the protective sleeve is connected with the pump tile supporting seat; the protective sleeve is connected with the cover plate through a bolt. The self-lubricating copper bush structure for the pump tile supporting seat of the thrust viscosity pump is simple in structure, can effectively realize self lubrication, and can reduce friction between sliding parts.