Abstract: 【 Purpose/significance】 It is clearly mentioned in the technology acceptance model that the external variables affecting user perception include the characteristics of information system design. The operation rules and laws (and mechanisms) of the information ecological chain of tourism commerce websites are changing under the digital economy. It can reveal the process and principle of tour⁃ ism business websites to improve user experience under the digital economy, and provide theoretical basis for the construction of tour⁃ ism ecological service.【 Method/process】 Combined with the existing studies, the structure of the information ecological chain of tour⁃ ism business websites under the digital economy is analyzed, so as to obtain the content of its operation mechanism. Based on the tech⁃ nology acceptance model, the relationship between the operation mechanism and user perception is verified by the structural equation model. 【Result/conclusion】 The personalized recommendation mechanism and service optimization mechanism in the ecological chain directly improved the perceived usability of users, and the guiding consumption mechanism directly improved the perceived use⁃ fulness of users. Tourism business websites should improve their two-way communication mechanism, consumption incentive mecha⁃ nism and improve the granularity of the use of user feedback information.【 Innovation/limitation】 From the overall information ecologi⁃ cal chain, focus on the user perception, to provide a new research perspective for the field of information ecology, research elements need to be further expanded.