Belonging to the technical field of new energy, the invention in particular relates to a lithium ion power battery pack convenient for equilibrium maintenance. The lithium ion power battery pack includes a shell, the upper end of the shell is fixedly connected to an upper cover, and a battery module is fixedly connected inside the shell, the battery module and the shell are subjected to potting bya thermal conductive pouring sealant, the battery module is connected to an equilibrium collection wire harness, the shell is equipped with an equilibrium maintenance hole, the side wall of the equilibrium maintenance hole is fixedly connected to an equilibrium conversion board, the equilibrium conversion board includes a PCB board, the PCB board is fixedly connected to an equilibrium maintenanceterminal and an equilibrium input terminal, and one end of the equilibrium collection wire harness is connected to the equilibrium input terminal, and the equilibrium maintenance hole is provided with an equilibrium protection cover. The lithium ion power battery pack provided by the invention is convenient for realizing equilibrium maintenance, and at the same time is also convenient for dissipation of the battery core heat, therefore the lithium ion power battery pack convenient for equilibrium maintenance is worth popularizing.