The utility model discloses a twoly drive six rounds of dollies, including frame body, dynamic wheel group I, dynamic wheel group II, drive arrangement and the conveyer of going of going, the dynamic wheel group I that goes distributes in frame body both sides with line dynamic wheel group II, the dynamic wheel group I that goes comprises three wheel I, II and III, the dynamic wheel group II that goes comprises three wheel IV, V and VI, wheel I and II coaxial couplings of wheel are driven by a set of drive arrangement, wheel IV is with V coaxial couplings of wheel and by the drive of the drive arrangement of another group, wheel III is connected through conveyer and wheel I, II drive arrangement, wheel VI is connected through the conveyer of another group and wheel IV, V drive arrangement, this trolley structure is simple, and small, light in weight, energy consumption are low, and coaxial problem of turning the difficulty about effectively having solved is compared with coaxial mechanism about other, and turn efficiently and obstacle climbing ability good, can extensively be applicable to the equipment of work in special environment.