Cell production systems meet the diversified production and quantity requirements flexibly. However, their efficiency mainly depends on the human operators’ working performance. In order to improve the efficiency of the cell production system, effective assembly-support systems should be developed to assist human operators during the assembly process. In this paper, a multi-modal assembly-support system (MASS) is proposed, which aims to support assembly human operators from both information aspect and physical aspect while meets the actual manufacturing requirements. With the information and physical support from this system, the assembly complexity and burden to the assembly operators are reduced. To evaluate the effect of MASS, a group of human operators are required to execute a cable-insert task. From the experimental results, we can conclude that using this system, the human operators’ assembly performance is improved and their mental work load is reduced, which improves the efficiency of the cell production system.