To provide a concrete molded body which is easily produced in a smaller number of steps, and has uniform quality.

A concrete member serving as a column, a beam, a wall, and a slab, to which bending stress is applied, has an expanded metal 2 embedded therein, in place of reinforcements, and at least part of the reinforcements are replaced by the expanded metal 2. The expanded metal 2 has meshes formed like a rhombus, a hexagon, or the like. Then the structure of the concrete member is applied to a retaining wall 3 or the like for retaining earth, in the form of the L, an inverted T, or the like. The retaining wall 3 consists of a planar bottom board 4 on the ground side, and planar vertical walls 6 erected on an upper surface of the bottom board 4. The vertical walls and the bottom board are each formed of precast concrete as an integrally molded body, or at least one of the vertical walls or the bottom board is formed of precast concrete.