The influence of packaging design on children's food choices has become an increasingly critical focus in efforts to promote healthier eating habits. This literature review synthesizes empirical studies published between 2018 and 2024 that examine how packaging elements—such as colors, characters, typography, health claims, and interactive features—impact children's snack preferences and perceptions. The review identifies key trends and psychological mechanisms behind packaging appeal, evaluates the effectiveness of design interventions aimed at encouraging healthier choices, and highlights the ethical considerations in targeting child consumers. Findings suggest that child-oriented design can significantly affect snack selection behavior, and that strategic, health-promoting packaging can serve as a valuable tool in public health nutrition strategies. The paper concludes with recommendations for policy, marketing practice, and future research directions.