We have developed cat's head programming method which is very effective to create computer software, but has no clear methodology of dividing problems. We applied mind mapping to the cat's head programming method to divide the problem to simple tinny problems by associative imagination, which is prompted by mind mapping. In our applicatin of cat's head method with mind mapping, it turns out to be very effective. In this paper, we summarize the application of mind mapping to cat's head programming method.