：将研究区域划分成许多具有固定长、宽、高且密度均匀的长方体，利用重力的可叠加性，计算了观测点重力异

常，在此基础上形成重力异常的目标函数。把长方体的密度作为参数，采用蚁群算法进行密度反演试验。结果表明该方法

具有一定的科学性和实用性。-: The study area is divided into a number with a fixed length, width, height and density, uniform rectangular, stackable nature of gravity, gravity anomaly calculated observation points, in the form of gravity anomalies on the basis of the objective function. The rectangular density as a parameter, using the ant colony algorithm for density inversion test. The results show that the method has some scientific and practical.