The present invention discloses method, system and network server for recording use of network service capability by applications (APPs), and the key points of the methods comprise: a network server acquires an identity of the APP and type information of the network service capability providing services for the APP, conducts service logic processing, and writes a message of use of network service capability, which comprises at least the identity of the APP and the type information of the network service capability providing services for the APP. With the methods of this invention, the purpose of making effective records of use of network service capability by APPs provided by service providers is implemented. Furthermore, management of APPs, such as charging, may be conducted by utilizing the records.