An application store system and an application development method using the application store system are provided in the disclosure. The system includes: a resource management functional entity, a developer community functional entity and an application online-store functional entity, wherein the resource management functional entity is configured to accept an operation of registering resources to the resource management functional entity and display information of the registered resources, wherein the resources include at least one of the followings: telecommunication capability resources and network resources; the developer community functional entity is configured to accept uploading of an application and review the uploaded application, wherein the application invokes the registered resources according to an invoking manner indicated by the information; and the application online-store functional entity is configured to provide an application, which is approved by the developer community functional entity, for a terminal user to download. The disclosure enhances technical supports for developers, and reduces difficulty and complexity of development.