With the s-d commutative operation model and under the condition of the approximate single-loop of s-d commutative reciprocity for spin Green functio n, we worked out the spin excitation delay for granular films with ferromagnetic granules, and using the (α-C:H)1-xCox granular film as a n ex ample, we explored the rules that spin excitation delay changes with temperature . As a result, the process of the spin excitation delay through spin-polarized excitation is not related to temperature; however, the process through thermal e xcitation is temperature-dependent.