Eta-meson photoproduction from proton near threshould is studied by using Effective Lagrangian Approach (ELA). While the resonance S11 (1535) is the dominant channel, contributions from Born terms and Vector meson (t-channel) are also included. The charactistics of amplitudes are analyzed for different channels and different couplings, and these features are used to extract information on the strength of pseudo-scalar (PS) and pseudo-vector (PV) couplings. It is found that there exists an approximate equivalence between the PS and PV couplings for S11 resonance.