Map track smoothing method and device

The invention provides a map track smoothing method and device, and the method comprises the steps: carrying out the sampling of original map data through a preset distance threshold value, and obtaining a sampling data set, and the preset distance threshold value is used for stipulating the distance between two adjacent points; performing polynomial fitting on the sampling data set by using a least square method according to a moving average thought to obtain a fitting data set; and performing exponential smoothing on the fitting data set to obtain track smooth data. The moving average thought is adopted, gradual smoothing is carried out, optimal function matching can be carried out on data, real expression of a fitting curve on the data is ensured, the comprehensive trend of the data can be fed back, positioning data provided by a manufactured map is smoother and more accurate, and the running stability of an intelligent driving vehicle is greatly improved. 本申请提供了一种地图轨迹平滑方法及装置，包括：利用预设距离阈值，对原始地图数据进行采样，得到采样数据