In order to obtain the best construction scheme for the arrangement of high-voltage cables in-phase and multiple parallel cables and ensure the power supply quality to the greatest extent, the BIM construction model of the arrangement sequence of high-voltage cables in-phase and multiple parallel cables is designed. Prepare all relevant data of multiple parallel cables in the same phase of high-voltage cables, build the model of multiple parallel cables in the same phase of high-voltage cables, combined with 3D simulation results, describe multiple parallel cables in the same phase of highvoltage cables and their occupied space, repeatedly introduce the time dimension, identify the construction conflict in this space, and generate the layout sequence of multiple parallel cables in the same phase of high-voltage cables. The test results show that the model can complete the simulation of multiple parallel cables in the same phase of high-voltage cables, and input the cable parameters efficiently and reliably.