Abstract: Abase on investigating the structure and distortion cracking character of plasmodium zhao zixiu mountain in Hua Ying city, this paper analyses origin mechanics and stability appraisement to the plasmodium. Analyse indicates its causation is that reverse Layered rocks slope which containing coal beds at the bottom of the mountain Topples and bends rip distortion among physiognomy evolvement of slope. Furthermore, excavating coal accelerates recent distortion of slope. The glide stability analyse through pass modulus way and dumpage stability analyse in Goodman-Bray way indicates that it is prodigious possible to loss stability when rainstorm or earthquake. Bases on its structure、origin mechanics、stability conditions and loss stability ways, this paper brings forward adopting colligation father measures such as reinforcement by rope-bolt、drainage and supporting hollow caused by excavating coal to integer, aiming at danger rock mass, advises to clear away or defend it by initiative defending netting.