The invention relates to the technical field of tunnel engineering testing, and provides a burying method of a tunnel fiber bragg grating force-measuring locking anchor pipe. The burying method comprises the steps that the piling and arranging position of the force-measuring locking anchor pipe and the piling and arranging angle of drilling are determined, and drilling is conducted; hole blowing is conducted; an anchoring agent is placed in a drilled hole, and the locking anchor pipe is conveyed into the drilled hole slowly; a temperature sensor is placed inside the locking anchor pipe, and the tail part of the locking anchor pipe is sealed by using the anchoring agent; the locking anchor pipe and steel frames are connected by using an L-shaped steel bar; and an armored optical cable is protected by using a hard plastic pipe to prevent the armored optical cable from being pulled off or folded, then the extra part of the cable is packaged in a PVC pipe, and the PVC pipe is fixed betweenthe steel frames. According to the burying method, the possibility of destroying of the optical cable and optical grating measuring points in the process of burying is avoided, and the survival rateof an optical fiber strain sensor is increased; the accuracy and precision of testing are improved; and the influence of dust on a site on testing is reduced, protection on the optical cable during collecting of data at the later stage is facilitated, and the operation difficulty of daily measurement at the later stage is reduced.