Stresses of wall with a round opening are analyzed for the case of normal loads acting on the arc boundary of a circular finite plate. For this solution, a new stress function is assumed in terms of bipolar coordinates, and the distribution of normal loading along the arc boundary is directly expanded to Fourier series. The stress distributions of the analytical and the photo-elasticity experimental results are shown. And stresses of the Reitai Arched Stone Bridge are analyzed. The analytical and the experimental results accord with each other.