Based on the mode of thinking of systematology,the new geological theory of rotations of the galaxy and the earth and their relationship with earth hydrocarbons is put forward in this paper.

• 基于系统论的思维方式,认为石油天然气的烃源是从银河系旋转孕育烃类吸积开始,逐步导致软流圈演化,形成行星地球上唯一规模最大、潜能最丰富的准烃源层;