The invention relates to a recyclable locking anchor rod and a construction method thereof in the field of geotechnical engineering anchoring. The recyclable locking anchor rod comprises four parts, namely an anchoring section (1), a rod body (2), an anchoring section locker and an anchoring section lock remover (3), wherein firm connection between the rod body (2) and the anchoring section locker is removed by the anchoring section lock remover (3) after the anchor rod is used, and the rod body (2) is recycled by drawing the rod body (2). The construction method of the recyclable locking anchor rod comprises the following five steps of: positioning the anchor rod; mounting and constructing; using; unlocking; and recycling the rod body (2). The recyclable locking anchor rod and the construction method thereof have the advantages of conveniently recycling main stress members of the anchor rod on the premise of guaranteeing safety and reliability of the anchor rod, high recovery rate, successfully solving the problem of an underground exceeding ground red line for the construction anchor rod in cities, along with convenience of recycling construction, low manufacturing cost, outstanding environment-friendly effect, and wide application to bracing of a foundation pit and other engineering fields.