In this paper, self-organization behavior in rock failure progress is simulated by RFPA^20 code under uniaxial compression test. The results visually present ‘3S’ phenomena （stress buildup, stress transference and stress shadow） in the whole failure progress. Some beneficial discussion on self-organized critical characteristics is made in the subsequent text, which has clarified some concepts such as selforganized criticality phenomena and so on. Through this study, it indicates that self-organization behaviour in rock fracture is one dynamic mechanical process, which occurs not only after self-organized critical point but near it, viz. before or after it, only mechanical behavior is different, it is more remarkable after than before.