The cardiovascular system can be programmed by a diversity of early-life insults, leading to cardiovascular disease (CVD) in adulthood. This notion is now termed developmental origins of health and disease (DOHaD). Emerging evidence indicates hydrogen sulfide (HS), a crucial regulator of cardiovascular homeostasis, plays a pathogenetic role in CVD of developmental origins. Conversely, early HS-based interventions have proved beneficial in preventing adult-onset CVD in animal studies via reversing programming processes by so-called reprogramming. The focus of this review will first summarize the current knowledge on HS implicated in cardiovascular programming. This will be followed by supporting evidence for the links between HS signaling and underlying mechanisms of cardiovascular programming, such as oxidative stress, nitric oxide deficiency, dysregulated nutrient-sensing signals, activation of the renin-angiotensin system, and gut microbiota dysbiosis. It will also provide an overview from animal models regarding how HS-based reprogramming interventions, such as precursors of HS and HS donors, may prevent CVD of developmental origins. A better understanding of cardiovascular programming and recent advances in HS-based interventions might provide the answers to bring down the global burden of CVD.