Multistory masonry wall spacing of 6-10 m vertical wall corresponding transverse end wall;; raft foundation, the base of the four corners of the box and the central location of the frame structure may have a greater differential settlement adjacent to the base of the column; transverse high-rise building and vertical directions due end. Various structures around or along the axis of symmetry position on the basis of distribution, the number of no less than four measurement points. Observing the reference point should be located outside the scope of excavation, generally not less than 30-50 meters and the number of not less than two. Laid observation point is the settlement observation work is a very important aspect, which directly affects the observed data can truly reflect the overall trend in settlement building and local settlement characteristics. Third, the precision requirements of Settlement Monitoring settlement observation accuracy rating in grade Ⅱ leveling. Length should be 20-30 meters line of sight, sight should not be less than 0.5 m height, should adopt legally closed to eliminate errors. Fourth, this paper observation period building (structure) building materials settling time observations are strictly limited conditions, especially the first observation to be on time, otherwise the whole meaning of the observed lack of complete observations. During the construction generally begin after the completion of the foundation or basement observation, observation time for each completed level, settling velocity ≥2.0mm / d should slow down the loading speed and increase the number of observations; the construction process as pause, then shut down and re-started when each measuring Once, during a 2-3 month lockout measured once; the first year after completion of the test four times (the first of which should be completed in two months after), the second test 2-3 times a year, once a year until a stable future. Retest all stages timing must not leak test or tested additionally, the only way to get an accurate settlement or law. Fifth, the stability criteria