A new high-temperature Oak mushroom (Lentinula edodes) variety, ‘Heunghwa 2ho’, adaptable to climate change, was developed for bed-log cultivation. Plant variety protection was applied for in 2022, and the variety is currently distributed to farms through non-exclusive licensing. The optimum mycelial growth temperature was 25oC, and the growth rate of 16.2±0.2 mm/7days was superior to that of the control cultivar. Fruiting body formation occurred at 18~28.1oC. The pileus was flat and thinner (9.6±2.9 mm) than that of the control cultivar. Fruiting occurred in spring, late summer, and autumn in concentrated or scattered patterns, with a dry weight of 22.5 kg/m3. Three years fresh yield reached 100 kg/m3, exceeding the yield criterion for economic viability in high-temperature varieties, and the second-year production rate of 80.9% further demonstrated its commercial potential.