This review focuses on research on tsunami deposits using flume experiments, summarizing current progress and future perspectives. Sedimentary conditions are easily controlled in flume experiments, and this allows insights into the sedimentary processes that occur during tsunami flow. Previous studies using flume experiments have provided an important input into numerical models of tsunami sediment transport. However, additional experimental studies are required to improve the identification and interpretation of tsunami deposits in the geological record. Recent studies, such as flume experiments that focused on terrestrial topography and large-scale flume experiments that enabled the recognition of sedimentary structures, have improved our understanding of sedimentary process associated with tsunami deposits.