<p>Ionogels are a class of soft materials composed of ionic liquids and polymer networks. They possess many fascinating intrinsic properties (<i>e.g.</i>, ionic conductivity, near-zero vapor pressure, and wide thermal and electrochemical operation windows) that make them promising for applications in ionotronics, sensors, energy storage devices, and flexible electronics. In addition to these intrinsic properties, ionogels can acquire additional functionalities (such as self-healing, shape memory, and adhesion) through structural design and the introduction of functional additives, thereby further expanding their application scope. This review focuses specifically on these additional functionalities of ionogels, elucidating their design strategies and applications and highlighting the current challenges and future opportunities in this rapidly developing field.</p>