'Longfan 15'is a new F1 hybrid tomato developed by crossing 09103 as female parent and 09104 as male parent.It is characterized by the indeterminate growth habit,middle lately ripening,moderate amount of leaves and midium growth potential.The matured fruit is pink and round,with midium hardness and long shelflife,and the taste is sweet and sour.The young fruit has no green shoulder.The single fruit weight is 279.5 g,and the soluble solids content is 5.28%.The fruit commodity rate is high.It is high resistant to TMV and leaf mildew,middle-resistant to early blight and powdery mildew.Average yield is more than 90 000.0 kg·hm-2.It is suitable for cultivation in protected condition in spring.