A hexagonal-lattice air-hole photonic crystal add-drop filter (OADF) is proposed combing the hybrid effect of total-internal-reflection (TIR) ring resonators and photonic crystal band gap. The mode profile of line defect waveguide can be effectively operated in single mode by either compressing or dislocating the two rows of photonic crystal above and below the line defect waveguide, which further affects the dropped efficiency. Dropped efficiencies of proposed filter with different widths of Bus-waveguide and disiocations δ are then numerically analyzed by using two-dimensional finite-difference time-domain (FDTD) numerical technique. The results show that -0.11 dB dropped efficiency and 1100 quality factor Q can be obtained with 1464 nm signal channel when the width of Bus-waveguide, coupling strength and dislocation are 0.83 periodicity, 0 periodicity and 0.5 periodicity. On the other hand, dropped efficiency of 0.89 dB and quality factor of 2100 can be also provided when the width of Bus-waveguide, coupling strength and displacement are 0.83 periodicity, 1 periodicity and 0 periodicity.