 Polymer-based electromagnetic interference, EMI, shielding composites have been developed rapidly over recent years due to their excellent properties such as light weight, flexibility, and low cost. However, these composites often lack the ability to combine high performance and multi-functionality. To address this issue, three potential solutions have been proposed by researchers and our team. Firstly, efficient conductive networks can be constructed to improve the shielding effectiveness of the composites. Secondly, multi-interface designs with light weight and multi-functional compatibility can be optimized to achieve better performance. Finally, the future development trend of polymer-based EMI shielding composites is prospected. This article was authored by Yali Zhang and Jun Weigu.