The invention discloses a new energy vehicle detachable battery pack, which includes a mounting bottom plate. A mounting base is fixedly mounted on the top of the bottom plate, and a battery pack bodyis installed on the top of the mounting base. Battery modules are disposed on both sides in the battery pack body. Hollow separating heat conduction plates are fixedly installed at equal intervals inside each battery module. Three groups of battery pack plates are fixedly installed at each of both sides of each hollow separating heat conduction plate in each battery module through side protectiveplates. The top of each hollow separating heat conduction plate is provided with a thermally conductive separating plate mounting head fixedly connected to the battery module. The new energy vehicledetachable battery pack has the beneficial effects that the heat absorbed by thermally conductive separating plates are transferred by thermally conductive strips, then transferred to the heat conduction plates, and finally dissipated through thermally conductive contact blocks and the heat dissipation blocks to ensure the safety of a heat dissipation process.