This review reviews techniques to enhance immunity and productivity in broilers, explicitly highlighting the effects of vaccination on poultry health. The grill business is integral to the global food supply, and improving grill health and productivity is vital to satisfy the increasing demand for poultry meat. Vaccination is essential for safeguarding poultry from viral illnesses, augmenting their immunological responses, and raising overall production efficiency. The main aim of this review is to analyze the many vaccination procedures utilized in grill production, evaluate their efficacy, and pinpoint research deficiencies. The review consolidates the latest discoveries about vaccine classifications, administration methods, and ideal vaccination timelines. It underscores the correlation between vaccination and immunity, the impact on growth performance and feed conversion efficiency, and the economic advantages of vaccination initiatives. The review also examines problems in vaccination, including vaccine failure, resistance, and environmental factors that affect vaccine efficacy. Furthermore, it examines novel trends in vaccine creation, encompassing the utilization of next-generation vaccines and adjuvants alongside the amalgamation of vaccination with alternative management strategies to enhance health outcomes. The results indicate that vaccination markedly decreases illness prevalence, improves production, and promotes the sustainability of poultry husbandry. It highlights multiple research deficiencies, especially regarding the prolonged impacts of vaccination on immunity and productivity, alongside the obstacles presented by developing diseases and vaccine resistance. Future research should focus on advancing more efficacious vaccines and investigating integrated vaccination techniques that account for environmental and genetic variables. It provides significant insights into contemporary vaccination techniques, their effects on broiler health, and prospective advancements in vaccination strategies within chicken production.