Qinglian 1609 is a new tomato variety developed by breeding G6-53-21-7-9-6-8 as the female parent and P81-5-23-12-4-6 as the male parent.The plant is of infinite growth type,with dark green leaves,ordinary flowers and leaves,strong growth potential,and the first inflorescence grows on 6-7 leaves.The fruit is medium fruit,round in shape,with high hardness.The young fruit has green fruit shoulders and turns pink when riping.The average mass of single fruit is 166.32 g.The fresh taste is sour and sweet,with excellent quality.Its total sugar content is 4.58%,total acid content is 0.40%,vitamin C content is 163.6 mg·kg-1,soluble solids content is 5.70%,and lycopene content is 83.80 mg·kg-1.Strong comprehensive resistance,resistant to various common pests and diseases,such as tomato yellow leaf curl virus (TYLCV),tomato mosaic virus(TMV),cucumber mosaic virus(CMV),leaf mold,wilt disease,gray leaf spot,and root knot nematode disease.The yield is good,with 7364.2 kg per 667 m2.It is suitable for early spring,late autumn green-house and overwintering greenhouse planting in the Huang Huai Hai ecological zone of Henan.