We investigate theoretically the effect of hydrogen,bond bending Motion on the proton coupled electron transfer (PCET) reaction, using,a model system where an intramolecular hydrogen-bonded phenol group is the proton, donor. It is shown that, in a two-dimensional (2D) model of the PCET reaction, the bending and stretching vibrational motions are separated, and due to the hydrogen bond configuration and anharmonicity :of the potential energy surface, the bending vibration can play a role in the PCET reaction. The results are also compared With two different sets of one-dimensional models (ID-linear and ID-curved). Due to contributions of the bending motion, the rate constants in the 2D model are larger than those in the ID-linear model, although the differences between the total rate constants and KIEs for 2D and 1D models are not major. Results from the 1D-curved model lie between the 2D- and ID-linear models, indicating that it can include softie effect of bending motion in reducing the potential energies along the reaction path.