Abstract:This research used strawberry ‘Benihoppe’ (Fragaria ananassa Duch.‘Benihoppe’) as test materials,using the injection method to inject methyl jasmonic (MeJA concentration is 400 μmol/L) on the 15th day after flowering.We analyzed the effects of MeJA on strawberry fruit development and its related gene expression,to reveal the role and its molecular mechanism in strawberry fruit development and mature regulation.Results show that:(1)with MeJA treatment strawberry fruit,fruit turn red and mature period significantly advanced than control,an average of 4 days in advance;(2)with MeJA treatment,jasmonic acid (JA) synthetic gene FaOPDA1 expression quantity rise rapidly during fruit mature period;(3)FaOPDA1 gene over-expression in strawberry fruit can also promote the strawberry fruit ripe in advance for 3 to 5 days.Meanwhile FaOPDA1 gene over-expression can induce a series of mature related gene expression and promote the strawberry fruit mature in advance.