The invention discloses a high-temperature graphite furnace crucible. A graphite furnace comprises a furnace frame, a furnace body, a rotating crucible body and a rotating mechanism; the horizontal type furnace body is arranged on the furnace frame, a heat insulation layer and the cylindrical barrel-shaped rotating crucible body are arranged in the furnace body, and the rotating crucible body is driven by the rotating mechanism; the furnace body communicates with a vacuum system and a gas path system, and is connected with a control cabinet and a power distribution cabinet of an electric control system through electrical signals; the lower part of the rotating crucible body is in rolling connection with a crucible base through a rotating shaft and a driven shaft, an annular boss is arranged in the middle of the outer part of the rotating crucible body, and the annular boss is fixed to the groove in a clamped mode; and the rotating shaft is driven by the rotating mechanism to rotate, and the rotating crucible body is driven to rotate along with the rotating shaft through axial lines. According to the graphite furnace crucible, the rotating crucible body is arranged in the graphite furnace, high-temperature sintering is carried out under the rotating condition of the crucible, through rotating of the crucible, powder materials in the crucible are stirred and mixed, the stirring heating uniformity is good, the stirring cooling speed is high, the cooling uniformity is good, and the sintering efficiency is high.