A flexible omnidirectional smart mobile device oriented to a hybrid processing robot. The omnidirectional smart mobile device enters a moving mode, and before the robot moves to a specified position, a chassis unit (100) being separately supported by a passive supporting unit (400) is switched such to the chassis unit (100) being separately supported by an omnidirectional moving unit (200); the omnidirectional moving unit (200) moves the robot to a specified position; once the omnidirectional smart mobile device reaches a specified position, same enters a working mode, and the chassis unit (100) being separately supported by the omnidirectional moving unit (200) is switched to said unit being jointly supported by the passive supporting unit (400) and a force sensing supporting unit (500); the force sensing supporting unit (500) can monitor ground support force in real time, adjust the ground support force when a dummy leg state occurs, and stably support the robot during a processing process.