The invention provides a data access method, a data access device, a computer device and a computer readable storage medium. The data access method includes the following steps: receiving a data access request sent by any end node; extracting the end node identifier of any end node; assigning the end node identifier to the data access request; judging the security of the data access request according to the configuration rule of an API interface; if the security of the data access request is qualified, responding to the data access request, and sending the response result to any end node matching the end node identifier; and if the security of the data access request is not qualified, rejecting the data access request. Through the data access method provided by the invention, the securityof data access is ensured, and access from an intranet to an extranet via an API interface is realized. Moreover, as the API interface function can be flexibly set according to the need, the configuration rule can be flexibly customized to meet different service needs.