Deterioration　of　charge　and　discharge　performance　of　vehicle-mounted　power　lithium-ion　(Li-ion)　batteries　in　low-temperature　environments　and　low　heat　dissipation　in　high　temperature　affects　the　application　of　electric　vehicles　in　cold　areas.　Therefore,　low-temperature　thermal　management　system　(TMS)　of　lithium　batteries　is　particularly　important.　A　Li-ion　battery　heating　method　based　on　micro　heat　pipe　array　(MHPA)　is　proposed　in　this　study.　A　three-dimensional　model　is　established　using　COMSOL　Multiphysics　software　to　analyze　temperature　distribution　inside　the　battery　during　low-temperature　heating.　Results　suggested　that　a　single　heating　system　based　on　MHPA　can　heat　battery　packs　from　-30　degrees　C　to　0　degrees　C　within　20　minutes　and　the　temperature　distribution　in　the　battery　pack　is　uniform,　with　a　maximum　temperature　difference　of　less　than　3.03　degrees　C.　In　addition,　the　interaction　between　heat　dissipation　and　heating　modules　in　the　lithium　battery　pack　of　the　integrated　TMS　based　on　MHPA　is　analyzed.　Simulation　results　showed　that　heat　dissipation　components　will　negatively　affect　the　temperature　rise　at　low　temperatures　and　heating　components　will　enhance　the　high-temperature　heat　dissipation　effect　of　the　battery　pack.　The　research　results　will　be　useful　in　the　design　of　MHPA　applied　to　the　TMS　of　Li-ion　battery　packs.