Electronic Journal of Differential Equations, Vol. 2012 (2012), No. 155, pp. 1-12. Title: Optimal control of a modified Swift-Hohenberg equation Authors: Ning Duan (Jilin Univ., Changchun, China) Wenjie Gao (Jilin Univ., Changchun, China) Abstract: In this article, we present the optimal control for the modified Swift-Hohenberg equation, under certain boundary conditions, and show the existence of an optimal solution. Submitted April 2, 2012. Published September 07, 2012. Math Subject Classifications: 35K55, 49A22. Key Words: Optimal control; modified Swift-Hohenberg equation; optimal solution.