In this paper, a mini-review of the research and development of our proposed phase shifters on multiple resonant technology is extensively presented. In contrast to traditional counterparts, the phase properties of proposed phase shifters are controlled by allocating the multiple resonant modes. It has the advantages of flexible design, compact size and high performance. The ultra-wideband, multi-wideband, and multi-function phase shifters can be realized based on the different topologies. The working principle and design method are illustrated. Finally, the further works about multimode phase shifters are performed.