Data security communication method and device based on open Internet

The invention provides a data security communication method and device based on an open internet. The method comprises the following steps: acquiring service data carried in a service request; the service request is initiated by a service system for a target service interface; the service system comprises a plurality of service interfaces, and the plurality of service interfaces are configured with a plurality of security policies in a one-to-one correspondence manner based on different data security classifications; based on a target security policy configured for the target service interface in advance, processing the service data to obtain processed security data; and sending the security data to a response end of the service request. According to the scheme, security configuration can be flexibly carried out according to the service scene and the data security level, so that the security and the efficiency are balanced as far as possible. 本发明提供了一种基于开放互联网的数据安全通信方法及装置，其中方法包括：获取业务请求中携带的业务数据；所述业务请求是业务系统针对目标业务