On the basis of contact angle experiments, surface energies of TATB,HMX and four fluor-polymers were calculated by geometric equation,harmonic equation and Young-Good-Girifalco-Fowkes (YGGF) equation respectively. The values of surface energies obtained by YGGF equation are more credible than those obtained by the others. The calculated interfacial energies between TATB and fluor-polymers show that the latent Van der waal′s interaction between F₂₃₁₄ and TATB is the most powerful.