Laneway is the artery of mine production, so establishing a true three-dimensional laneway model is important for guiding the mining design plans, project construction and security assistance and so on. This paper details the three-dimensional modeling process of laneway body, proposes the basic framework of building three-dimensional model as the laneway's center line, according to the geometric spatial characteristics of laneway, and gives several control parameters of expressing the geometric shape on laneway. Meanwhile, taking the straight-line laneway as an example, through calculating the three-dimensional coordinates of laneway feature points, using space point, line and plane as the basic primitives, establishes the laneway's three-dimensional surface model.)
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