The invention provides a soft switching system of Internet of Things and a method thereof, and belongs to the field of Internet of Things technology. The system comprises a perception layer device or bus, an access system, a network soft switching system, a soft switching service and management system, a standardization information format, and a mobile service management terminal or a PC service management terminal. According to the invention, complexity of a perception layer in the network accessing stage is separated and shielded. On this basis, transportation and switching technology which can be standardized and suitable for Internet of Things are introduced, so problems of complexity and high accessing cost of the perception layer devices of Internet of Things in accessing stages are solved. Processing methods of identifying, distinguishing, addressing, transporting and information switching based on Internet network layer information are also introduced, so a highly practical and economical solution is provided for standardization and large-scale application of Internet of Things in network layer. According to the invention, technical cost is low, cost performance is high and the system is high in university and compatibility and large in access capacity.