PROBLEM TO BE SOLVED: To provide a method of anchoring a shear reinforcement member by which a burden on a worker in inserting the shear reinforcement member can be reduced and quality degradation can be suppressed by preventing air from being mixed to a grout material within a shear reinforcement member insertion hole.SOLUTION: The method of anchoring a shear reinforcement member is provided in which: a shear reinforcement member insertion hole 2 is drilled upwards in an existing precast concrete structure; an injection pipe is inserted into the insertion hole 2; a plastic grout material G is injected into the insertion hole 2, an outwards extending flange part being formed in an outer circumference of the injection pipe; at a position opposing the insertion hole 2, an elevating mechanism 8 is disposed for moving a shear reinforcement member 3 upwards; in a receiving part 8a of the elevating mechanism 8, a closing member 10 is disposed and on the closing member 10, a shear reinforcement member 3 is disposed; the shear reinforcement member 3 is inserted into the insertion hole 2 using the elevating mechanism 8; the closing member 10 is mounted to a construction surface 4 of the structure 1; and then the grout material is cured.