This study mainly relates the gravity‐surface‐waves generated when a uniform flow passes through a bulging bed. This is done firstly by treating the linear surface waves generated when a uniform flow passing through single wave bed, then, secondly, by making use of the fundamental solution obtained as mentioned above, and coordinating it with the Fourier integral and contour integral, so that the gravity surface wave generated by the more generalized and simple wave bed can be treated. With respect to the analytical solution, the major premise of this assumption is still limited to the uniform and irrotational flow, and at the same time neglecting the influence of surface tension, in order to obtain the analytical result of the flow field. It is important to propose possible methods to analyze the surface wave generated by any form of bulging bed, so that the problem of gravity surface waves generated by the bulging bed can be reasonably solved by the analytical method.