The invention relates to a node selection method in a ubiquitous peripheral environment. The node selection method includes that energy based reliability level RSE and mobility based reliability level RSM between source nodes and service nodes are calculated; if calculated reliability, of the service nodes, RS=RSM*RSE, then the selection weight value, of the service nodes, R=w*RS/delay; the energy-based reliability level of communication links between the source nodes and target service nodes is calculated to be RRE and the mobility-based reliability level of the communication links between the source nodes and the target service nodes is calculated as RRM, then the reliability level of the communication links between the source nodes and the target service nodes is RR, and the communication link with the largest RR in the communication links between the source nodes and the target nodes is selected to perform data transmission. With the method, mobility of the nodes and effective time of the nodes are predicated, a cluster structure of high reliability is established to complete service discovery, reliability of the service providing nodes and paths is calculated, the service providing nodes and the paths highest in reliability are selected, and service selection is completed.