The existing slope deformation monitoring is often influenced by extreme harsh environment, difficult sensor layout and limited sensor range, etc. In this paper, the conception of pasted smart rock was put forward and a slope large deformation monitoring method using pasted smart rock was developed. Accordingly, the simplified algorithm of ultra-wide band (UWB) was given for the slope deformation monitoring method. The monitoring method was verified by landslide simulation system applied with driving force. The results show that the slope large deformation development and slope instability evaluation can by judged by pasted smart rock’s horizontal displacements, and the results are in accord with those of the monitoring assessment by soft film size. The proposed method can be used as reference in the further study and practical engineering monitoring.