Application Service Provider(ASP), the service provider who manages and delivers standard application functionality or associated service across a network to multiple customers using a usage-based pricing model, has appeared as a new business style in information technology market. For successful implementation of the ASP model, some critical issues should be noted. Because these issues are related to service qualities, certification and audit of ASP are important. This paper investigates characteristics of the ASP model and designs the proper frameworks for certification and audit of ASP. It is examined how the framework can remove potential threats and risks of the ASP model, and how the framework can be compared with traditional approaches.