Abstract: The independent director system means to balance and supervise the rights from management by means of independent third-party.This paper takes the experience data of South Jiangsu, whose private economy developed well, as an example to study the proportion of private quoted company's independent directors, staff members' background, salary, reputation, etc. in the area, finds out influential factors on the independent director system's working, and draws a conclusion that being strict with the qualification of independent director, improving the independent director's entry threshold, establishing the independent director's market, introducing the mechanism of reputation, making the independent directors take their own responsibilities actively, improving incentive compensation system and letting the independent directors evaluate their own feats by means of constructing simulation for the independent director system working well in a private quoted company in South Jiangsu.