Abstract: Micro-supercapacitors (MSCs) are regarded as one of the most promising power sources for future miniaturized electronics owing to their reliability and superior energy storage capabilities. The primary challenge in current MSC research has been identified as the maximization of energy storage material integration within confined spaces while improving the electrochemical performance of devices. Direct ink writing (DIW) printing technology, as a novel 3D printing technique, has demonstrated significant technical advantages in the integrated manufacturing of energy storage devices due to its capability for high-quality material loading and precise three-dimensional structuring. In this review, the characteristics of DIW technology and its application advantages in MSCs were first briefly introduced. Subsequently, various carbon-based materials commonly utilized in DIW-fabricated MSCs, along with their composites with other types of active materials, were comprehensively summarized. The printing processes for different materials and the electrochemical performance of printed electrodes or devices were systematically analyzed. Additionally, recent advancements in DIW-printed carbon-based materials for other emerging energy storage systems were briefly discussed. Finally, recommendations for future research were proposed, including material innovation, structural design, printing process optimization, and equipment development. This review is expected to provide insights and references for further enhancing the practical application of DIW technology in MSCs or other energy storage devices.