The utility model discloses a temporary support of a pipe section of an immersed tunnel. The temporary support comprises an inverted trapezoidal pipe section supporting foundation ditch, wherein a rubble bottom foundation layer and a macadam substratum layer are sequentially arranged at the bottom of the pipe section supporting foundation ditch; a supporting cushion block is arranged on the macadam substratum layer; the supporting cushion block is a solid four-prismatic-table-shaped reinforced concrete structure, supporting inner ribs are arranged along the inner surface of the supporting cushion block, a supporting steel plate is arranged at the top face of the supporting cushion block, a pre-embedded grouting pipe is arranged under the supporting steel plate, standing main ribs are distributed in the supporting cushion block, and the standing main ribs form a framework of steel reinforcement of the supporting cushion block; and a supporting suspension center structure is arranged on the supporting cushion block. According to the temporary support of the pipe section of the immersed tunnel, reinforced concrete cushion blocks are adopted as a temporary support system of the pipe section of the immersed tunnel, the construction quality can be effectively controlled, the construction period can be shortened, and the construction risk can be lowered.