The invention relates to a building and calibrating method for a construction material wireless propagation loss parameter database, which includes the following steps: firstly, building a construction material wireless propagation loss parameter database; secondly, building a three-dimensional space model for a target building; thirdly, selecting a plurality of testing points inside the building, and measuring wireless signal intensity information of the obtained testing points on site; fourthly, in virtue of the structure of the building and the information of the construction material wireless propagation loss parameter database, based on an indoor distributing system model inside the building, and through the utilization of an improved ray tracing propagation model, predicating the wireless signal intensity information of the testing points; fifthly, adjusting the construction material wireless propagation loss parameter database through the simulated annealing algorithm to obtain the minimum error of mean square of the predictive value and the measured value, so as to obtain the more accurate and perfect construction material wireless propagation loss parameter database.