The research on target’s three-dimensional imaging is of significant meaning in feature extraction and recognition. Precession is the typical micromotion for cone-shaped space targets， such as warhead and satellites， which can be used for target feature extraction and identification. Inverse synthetic aperture radar （ISAR） imaging of a precession target， which is a kind of fast spinning target， is faced with migration through range cell when we use traditional imaging algorithms. Target’s micro-motion model is built and the theory of micro-motion imaging is analyzed. The relationship among radar’s line of sight， direction of target’s precession axes and imaging plane is derived. A new three-dimensional reconstruction method of scattering centers is proposed. With the analysis of multi-static ISAR image and the micro-motion model， the association of scattering centers in different station’s ISAR image is built. The target’s three-dimensional imaging is accomplished. Simulation experiments show the presented method is efficient in micro-motion target’s three-dimensional imaging.