The angular dependence of the exchange bias field (Hex) and coercive field (Hc) in the Co-Fe/Mn-Ir epitaxial bilayers is investigated. The Hex and Hc behavior with field angle is analyzed in terms of the main and closure domain structure of crystalline Co-Fe ferromagnetic layer. Hex and H c are observed to decrease slightly as the annealing angle decreases. Hex is found to increase as the magnetic field angle increase till 50deg and shows a peak, and then decrease as the angle increase further. The Hc also decreases up to magnetic field angle 50deg and shows zero values at angle greater than 50deg