By combining the Backlund transformations and the AKNS system[ Study in App
l. Math. 53 (1974) 249.] which is a linear eigenvalue problem of the corres
ponding evolution equation, a method to find new exact solutions from known
stationary solutions for nonlinear integrable equations is proposed. As an
example, Korteweg de Vries (Kd V) equation is used to illustrate this meth
od, and a class of new exact solutions of KdV equation is obtained.