The invention discloses an electric vehicle power battery pack temperature control system based on heat pipes. The electric vehicle power battery pack temperature control system is characterized in that a battery pack temperature control box body is a sealed box body, a sealed battery grouping bin is contained in the sealed box body, the length and the height of the battery grouping bin are smaller than those of the battery pack temperature control box body, but the widths of the two components are equal; an annular heat exchange bin is formed between the battery grouping bin and the battery pack temperature control box body; the heat pipes are arranged in the battery grouping bin along the length direction in a penetration manner, the heat pipes penetrate through insulating heat sinks arranged in parallel, and the ends of the heat pipes are located in the annular heat exchange bin; single batteries are arranged between the insulating heat sinks, the radiating surfaces of the single batteries are fitted with the insulating heat sinks; a heater and an evaporator are respectively arranged in the annular heat exchange bin. The electric vehicle power battery pack temperature control system disclosed by the invention can be used for solving the problem that effective heat treatment cannot be performed on each single battery due to overlarge flow resistance and achieving sealed design of the battery box body, the safety is high, the temperature of the power battery is regulated quickly, and the temperature field distribution is uniform.