The purpose of this paper is to suggest what kind of innovation can be tried by individual organizations responsible for delivering services to disabled people under the institutional constraints. To this end, I examined the structure of tensions and conflicts that existed at the macroscopic or institutional level in relation to the services of persons with disabilities, and examined how they affect the roles of individual organizations. And this paper explained how service innovation of organization should be performed in this institutional environment. The service organizations for disabled people are in a confusing situation. In an institutionalized system of segmental delivery and individual model, service organizations are trying to build individual support plans, person centered planning, future planning, and advocacy services. But it seems that institutional inadequacy of our service environment is too high to carry out such an attempt. In this environment of institutional constraint, many organizations seem to be getting tired and going into mannerism. It's time to share visions that can overcome institutional constraints and practice innovative approach. In the context of institutional contradictions, the fundamental nature of innovation that service organizations should implement is to resist to institutional entities. In order for innovation to be possible, it is important that organizations’leaders and employees share sensitivity to disability and that the role of services is to implement a social model of disability. This implies that service organizations should have an institution-resistant orientation to change the unreasonable system, while acknowledging that exists within the government-funded system.