The invention relates to a ubiquitous service selection method and a ubiquitous service selection system. The ubiquitous service selection method comprises the steps that S1, a user terminal triggers a plurality of ubiquitous services according to detected user state information; S2, the user terminal broadcasts data packets to other terminals, the plurality of ubiquitous services are determined in the other terminals, each of the other terminals judges services which can be executed by itself, service quality benefits of the corresponding services are calculated, and the service quality benefits are sent to the user terminal; and S3, a user changes a candidate terminal list according to the terminal corresponding to the maximum service quality benefit, an execution terminal list is loaded according to the updated candidate terminal list, and terminals in the execution terminal list cooperatively execute corresponding services according to the structural relationship. According to the technical scheme provided by the invention, the service processing quality can be improved, the cooperativity among heterogeneous nodes in service execution is improved, and the continuity of service processing is improved.