Concrete continuous beams and slabs partially prestressed with unbonded CFRP tendons still have the plastic redistribution process of internal force because of non-prestressing bonded reinforcements for all loading stage. Based on the results of full-range analysis programs of concrete continuous beams and slabs partially prestressed with unbonded CFRP tendons, the basic factors such as combined reinforcement index of intermediate support section, combined reinforcement index of mid-span section, prestressing degree, loading type, ratio of span to depth and modulus of elasticity for CFRP tendon affecting moment modification of this kind of continuous beams and slabs.. Based on the results of simulations analysis, the calculation formulas of moment modification coefficient in continuous beams and continuous slabs are proposed, and they can provide references for plastic design of this kind of continuous beams and slabs.