A method for calling a software development kit, applied in a platform, wherein the method comprises: according to a received preset instruction, triggering a target application to call a function of a software development kit of a third-party application, wherein the target application runs on the platform which is installed in an operating system of an electronic device, wherein the platform provides a running environment for applications which comprise the target application, and identifiers of applications running on the platform are displayed on an interface of the platform, and a user's tap or click on an icon of the target application on the interface of the platform triggers the platform to download data relating to the target application and install the download data into a process of the platform, and download and installation can be performed at the background; transmitting identification information of the target application to the software development kit; determining metadata which is required for the third-party application to verify the target application, and establishing an association relationship between the metadata and the identification information; and registering the metadata into the operating system in which the platform is installed so that the third-party application can verify the target application by obtaining the metadata from the operating system according to the association relationship; wherein the method further comprises: registering into the operating system a component which is required for the software development kit to respond to the target application; and after receiving a running instruction from the operating system, executing the component so that a response which is made by the software development kit to the target application is transmitted to the target application via the component; wherein registering into the operating system the component which is required for the software development kit to respond to the target application, comprises: when registering the metadata into the operating system, registering the component into the operating system. according to a received preset instruction, triggering a target application to call a function of a software development kit of a third-party application, wherein the target application runs on the platform which is installed in an operating system of an electronic device, wherein the platform provides a running environment for applications which comprise the target application, and identifiers of applications running on the platform are displayed on an interface of the platform, and a user's tap or click on an icon of the target application on the interface of the platform triggers the platform to download data relating to the target application and install the download data into a process of the platform, and download and installation can be performed at the background; transmitting identification information of the target application to the software development kit; determining metadata which is required for the third-party application to verify the target application, and establishing an association relationship between the metadata and the identification information; and registering the metadata into the operating system in which the platform is installed so that the third-party application can verify the target application by obtaining the metadata from the operating system according to the association relationship; wherein the method further comprises: registering into the operating system a component which is required for the software development kit to respond to the target application; and after receiving a running instruction from the operating system, executing the component so that a response which is made by the software development kit to the target application is transmitted to the target application via the component; wherein registering into the operating system the component which is required for the software development kit to respond to the target application, comprises: when registering the metadata into the operating system, registering the component into the operating system. registering into the operating system a component which is required for the software development kit to respond to the target application; and after receiving a running instruction from the operating system, executing the component so that a response which is made by the software development kit to the target application is transmitted to the target application via the component; wherein registering into the operating system the component which is required for the software development kit to respond to the target application, comprises: when registering the metadata into the operating system, registering the component into the operating system.