We investigate the adaptive motion/force control for rigid-link flexible-joint(RLFJ) manipulators with time delay. Firstly, a coordination transformation is introduced to obtain the reduced dynamic model. Secondly, the time delay is approximately considered as of first-order and is compensated. The adaptive law updates the unknown parameters online to reduce the impact on the system by manipulator modeling uncertainties. Meanwhile, the motion/force control strategy is proposed by using the backstepping meth...