A method for embedding an optical fiber sensing network into a guided missile body structure in a shape-giving manner includes the following steps that firstly, a soft wood layer (2) is laid on the outer surface of a guided missile metal shell (1); then by means of cutting, grooves (3) capable of sufficiently containing optical fibers to be laid are formed, sensing optical fibers (4) are laid in the optical fiber grooves (3) one by one, and the optical fiber sensing network (5) equal in interval and longitudinally and transversely staggered is formed; and gaps between the optical fibers (4) and the optical fiber grooves (3) are filled with low-elasticity-modulus glue (6), and the optical fibers (4) are made to be fixed. Then, a layer of soft wood is laid on the existing soft wood layer (2) to protect the sensing optical fibers (4), so that it is prevented that when the metal shell is sleeved with a heat preventing protection layer, the optical fibers (4) are damaged. The method has the beneficial effects of being flexible in arrangement, simple in process, good in safety performance and the like, the existing structure of the structural body cannot be damaged, the method can be applied to various structural bodies, and the production efficiency can be greatly improved.