A terminal assembly of a driving motor includes: a support ring surrounding a stator core to which bobbins are coupled, the bobbins being configured to allow stator coils to be wound thereon; a first sub-assembly disposed on the support ring to surround the bobbins; and a second sub-assembly connected to the first sub-assembly, the second sub-assembly including fixing portions inserted into coupling recesses formed in the bobbins. Three-phase bus bars connected to three-phase lead wires of the stator coils are inserted into the first sub-assembly and an N-phase bus bar connected to N-phase lead wires of the stator coils is inserted into the second sub-assembly.