航空影像单像空间后方交会是利用影像所覆盖地面范围内若干控制点的已知地面坐标和相应点的像点坐标，根据共线方程，在最小二乘法的原则下，计算航空影像的外方位元素。 本文采用VS2008.NET 编译平台和C#语言编写了单像空间后方交会的参数计算程序。利用相关文献中的实验数据与结果，证明本程序运行良好，参数解算精确，可以满足工程项目要求。 关键词：摄影测量与遥感；外方位元素；共线方程；最小二乘原则；空间后方交会；-Aviation image space resection alone is the use of images covering the ground within known ground control point coordinates and the coordinates of the corresponding point like point collinear equation, under the principle of least squares method to calculate the exterior orientation of aerial imagery elements. In this paper, the VS2008.NET compiler platform and the C# language program parameters like space resection alone. Using the experimental data and the results of the relevant literature, to prove that the program is running good, parameters solver accurate, to meet project requirements. Keywords: Photogrammetry and Remote Sensing　exterior orientation elements　collinear equation　least squares principle　spatial resection