Plants, as sessile organisms, are constantly exposed to various abiotic stresses such as drought, salinity, heat, cold, heavy metal toxicity, and nutrient deficiencies. These environmental factors negatively impact plant growth, productivity, and survival. To cope with such challenges, plants have developed intricate regulatory mechanisms, including epigenetic modifications, that allow for dynamic gene expression changes without altering DNA sequences. Epigenetic regulation, which includes DNA methylation, histone modifications, non-coding RNAs, and chromatin remodeling, plays a crucial role in stress response, adaptation, and memory formation in plants. A significant aspect of epigenetic regulation is its role in stress memory and transgenerational inheritance. Studies demonstrate that DNA methylation and histone modifications contribute to inherited stress tolerance. This knowledge has major implications for crop improvement strategies, including epigenetic breeding, CRISPR-based epigenome editing, and priming techniques that enhance stress resilience in plants. With climate change intensifying abiotic stresses, understanding epigenetic mechanisms offers promising solutions for sustainable agriculture. Advances in epigenomic tools such as bisulfite sequencing, ChIP-seq, and CRISPR-dCas9 are paving the way for targeted crop enhancements. However, challenges remain in identifying stable epigenetic markers and integrating epigenetic modifications into breeding programs. Future research should focus on multi-omics approaches and regulatory considerations to harness epigenetic potential for stress-resilient crop development.