We present an analytical solution of interstitial fluid pressure in poroelastic materials subjected to cyclic axial and bending loading. The analytical solution contains transient and steady-state responses. Both of them depend on three dimensionless parameters: the dimensionless stress coefficient H, the dimensionless frequency Omega and the axial-bending loading ratio Lambda. In this study, we focus on the poroelastic materials that have large value of H enough to neglect the effect of the fluid-to-solid coupling, and investigate the behaviors of interstitial fluid pressure with the change of two dimensionless parameters Omega and Lambda.