<p>Autophagy is a conserved degradation and recycling mechanism in eukaryotes that plays essential roles in plant growth, development, and stress adaptation. Although initially studied in the context of carbon and nitrogen starvation, recent research has revealed a pivotal role of autophagy in micronutrient homeostasis. Micronutrients such as zinc (Zn), iron (Fe), manganese (Mn), and copper (Cu) are indispensable for numerous physiological and biochemical processes, including photosynthesis, redox regulation, and enzyme activity. Their deficiency or excess severely affects plant productivity and the nutritional value of crops, with direct consequences for global food security and human health. Emerging evidence has demonstrated that autophagy contributes to the intracellular recycling, remobilization, and redistribution of these micronutrients, especially during senescence and seed filling. Autophagy-defective <i>Arabidopsis</i> mutants exhibit early senescence, impaired micronutrient remobilization, elevated reactive oxygen species (ROS) accumulation, and reduced micronutrient content in seeds. Furthermore, autophagy interacts with ROS signaling, the salicylic acid pathway, and the target of rapamycin (TOR) kinase network to fine-tune micronutrient responses. This review synthesizes current knowledge on the role of autophagy in micronutrient management, emphasizing Zn and Fe homeostasis, seed loading, and stress tolerance. We highlight mechanistic insights, crosstalk with signaling pathways, and potential applications of manipulating autophagy for crop improvement and biofortification. Finally, we identify research gaps and propose future directions to exploit autophagy for sustainable agriculture and nutritional security.</p>