Abstract: This paper introduces pansystem methodology which leads to geomorphology. According to the principle of pansystem ecology, we look upon the interaction of the endoge-nic and exogenic effects as the panenviroment and at the same time the geomorphologic patterns as functions and properties.On the basis of enumerating the numerous appearances of geomorphologic pan-symmetry, this paper analyses the systematic character of the endogenic effect and the random character of the exogenic effect as well as explores the form mechanisms and the evolving laws of the geomorphologic phenomena through the pan-simulation of geomorphologic system aud the geomorphologic process.