Abstract: Local government's executive force can be enhanced by increasing the government credibility and administrative efficacy.The supply and innovation of institution system should be promoted as a priority for promoting the local government executive ability.Institution affects execution through supplying incentives or restraints for executive agent.The paper tries to build institution system of facilitating local government's executive force based on Ostrom' IAD framwork,includes constitutional institution,collective action and operational institution.The former two determines the latter's utility of executable procedure and responsibility,such as the relationship of the government,market and society in the constitutional institution,the incentive and restraining mechanism in collective action institution.The central government should pay attention to the institution construction of the constitutional and collective action institution.The local government then designs all kind of concrete institution on the basis of them.