Low-intrusion API (Application Program Interface) refined security management and control method

The invention discloses a low-intrusion API (Application Program Interface) refined security management and control method. The method comprises the following steps: establishing a low-intrusion API refined security management and control technical framework; under the framework, the access of service security capability is completed through an instrumentation client in an instrumentation mode, a service security management and control mechanism is established, and low-intrusion docking is completed; and after the service security management and control mechanism takes effect, calculating a service security enabling value. The invention discloses a low-intrusive API (Application Program Interface) refined security management and control technology, which is used for completing fine-grained access control of a deep business process, realizing security enabling of business fusion and giving a security enabling value calculation method under the condition that an original business information system is low-intru