The purpose of this paper is to examine the dynamic stall characteristics of an elliptic airfoil when subject to constant pitch motions. In this study, which was motivated by the pressing need for a greater understanding of the reduced frequency$({kappa})$ effects on flow patterns of elliptic airfoil, the various reduced frequencies were considered. The result confirms that the reduced frequency has a profound effects on the flow patterns. The increase of ${kappa}$ accelerate the separation bubble bursting process up to ${kappa}=0.10$, then diminish with further increase in ${kappa}$. Compared with static condition, the dynamic pitching airfoil delays stall angle approximate $4{circ}{sim}5{circ}$ during pitch-up stroke for ${kappa}=0.10$. Results from this qualitative analysis provided valuable insight Into the control of dynamics stall.