After an earthquake occurs, the moving measurement of the inclination of dangerous buildings is complex, and the conventional measurement methods present a symmetrical deviation. Therefore, to improve the accuracy of the measurement of inclination, a three-dimensional (3D) measurement through optical flow recovery algorithm combined with building information modeling (BIM) was designed. The BIM technology is used to collect and integrate all the building inclination information and thereafter the dangerous building information model is constructed. The 3D measurement through optical flow recovery algorithm was used to obtain the target feature points in the constructed building information model. Based on this, a three-dimensional measurement model of inclination of dangerous buildings after the earthquake was designed. The simulation results showed that the error rate of 3D coordinate values of dangerous building, measured by the proposed method, is less than 0.4% and the average evaluation time is only 2.5 s, which indicates that this method can improve the evaluation effect of building inclination.