The invention discloses a cloud computing based voice ability service open system. The cloud computing based voice ability service open system is deployed to a cloud computing platform and sequentially comprises an application database layer which provides various application database resources required by voice services; a data service layer which is used for access, synchronization, verification and logic conversion of data; a service implementing layer which is used for implementing all the functional components related to a voice service ability; a service layer which is used for packaging all the issued voice service abilities; an enterprise service bus layer which is used for providing a service access function for the outside; a service process layer which is used for arranging multiple services according to the service process and providing a composite service and a process service by combining or arranging the services; and a user experience layer which is used for supporting access of clients in all types. The cloud computing based voice ability service open system realizes uniform management and output of the voice ability; and application for accessing a voice ability open platform is just required, so that the use threshold, use cost and development period of the voice ability are reduced.