A securities information service system comprises: a service module and a query module. The service module is used to accept a register request from a user and provide a user record. The query module is used to establish a comparison condition according to the user record. The service module is also used to accept a securities message. When the securities message satisfies the comparison condition, the service module will recommend the securities to the user. The securities information service system recommends the securities to users according to the comparison results in order to raise the users' identification and satisfaction with the recommended securities.