Fault-tolerant and error-correcting mechanism plays a fundamental role in the “Three Mechanisms” by clearly supporting cadres who dare to assume，do things steadfastly and do not seek selfish interests. All parts of Jiangsu have strengthened the operation of the system on the basis of the system of the central government and provincial committees，and achieved certain results. However，in the operating process，there are still many difficulties. Facing the new era，in the process of cadres fault-tolerant and error-correcting mechanism，Jiangsu should refine standards，standardize procedures，strengthen matching，summarize experience and create an atmosphere，so as to make the fault-tolerant and error-correcting mechanism easier to realize.