<p>Over the past two decades, the widening gap between energy demand and supply has become a major global concern due to uneven distribution, overconsumption, and fossil fuel depletion. The development of shape-stabilized organic phase change materials (SSOPCMs) has gained popularity to slow energy usage growth. Herein, this paper examines current developments in SSOPCMs, emphasizing their performances, preparation methods, and wide range of applications. Firstly, various types of organic phase change materials, including paraffins, fatty acids, polyalcohols, and others, are discussed with emphasis on their thermal properties and stability issues. After that, three main strategies for preparing SSOPCM—encapsulation, absorption, and synthesis processing—are described in detail separately. These methods aim to address the problems of organic phase change materials including leakage, low thermal conductivity, and flammability. Additionally, this article also highlights the application of SSOPCMs in fields such as wearable technology, biomedicine, building construction, and agriculture, demonstrating their potential in enhancing energy efficiency and providing thermal comfort. At last, this review underscores the future research directions aimed at improving the thermal conductivity, stability, and environmental compatibility of these materials. This comprehensive overview emphasizes the transformative impact SSOPCMs can have on sustainable energy solutions and global warming mitigation efforts.</p>