<title>Abstract</title> Over the past few decades, there have been many important achievements on the design, research and development of minimal surface lattice structures. In this work, we propose a modeling method for triply periodic minimal surfaces (TPMS) lattice structures with complex contours. This method is based on moving elements method (MEM) and mainly includes the following parts, such as dividing the model mesh, solving the iso-surface of the TPMS in the model, obtaining the TPMS lattice structure tr…