Abstract: Aiming at the low efficiency and labor-intensive of obtaining the information of rock mass structural surface by artificial close contact measurement，the Sirovision three-dimensional and non-contact measurement system of rock mass structural surface is researched.The hardware composition and specific features of post-processing software of the system are introduced，the suitable method of obtaining rock mass structure surface information and the flow of data processing are proposed and applied to survey and analyze the jointed rock in Tiedanshan iron mine successfully.Firstly，according to the original formation of two-dimensional images obtained in the investigation area，the three-dimensional roadway space model data with real coordinates is got.Then，the rock mass structure surface is digitally identified，the obtained indentified data are grouped on the basis of occurrence so as to obtain the spatial orientation of different joints group.Finally，according to the positional relationship among different joints group，the wedge of the structure is analyzed based on the post-processing software system to determine the location of dangerous structural body.The above research can provide some reference for the mine safety production and optimization of engineering parameters.

Key words: Sirovision measurement system, Stability analysis of rock mass, Parameters of rock mass structural surface, Occurrence characteristics, Three-dimensional space model