Over the past five decades, Iran has witnessed significant societal shifts, yet scholarly inquiry into the evolution of death rituals remains limited. This paper addresses this gap by examining the influence of modernity on death rituals in Iran, with a specific focus on Behesht-e Zahra, Tehran's cemetery. For a six-year conducting fieldwork, participatory observations and in-depth interviews with participants of death ceremonies, the study reveals the changing dynamics of death practices. It uncovers a transition from simple, survivor-led rituals in pre-modern Iran to a more complex process where survivors have less influence. Furthermore, the research underscores how modernity not only molds death culture but also reshapes societal perceptions of mortality in Iran. By exploring the interplay between modernity, cultural norms, and attitudes towards death, this study provides valuable insights into the shifting landscape of death rituals within Iranian society.