The disclosure discloses a method and system for implementing a broadcast group call in a click to dial service, which is used to resolve technical problems with the conventional CTD service which cannot implement the group call of multiple logical callees and does not support functions such as broadcasting. In the disclosure, the signaling control and conference mixing are performed by a click to dial service application server and no specific terminal is required, and the group call and broadcasting of multiple logical callees can be implemented under the control of the click to dial service application server, every logical called user can access the call as long as he/she goes off-hook. The disclosure extends the functions of the existing click to dial service, extends the application of the click to dial service, and satisfies multiple demands of users.