‘Liaoyan 165’ is a heat-resistant tomato hybrid with resistance to TYLCV,developed by crossing the inbred lines ‘336’ and ‘345’ and using molecular marker and sexual hybridization.It is strong growth vigor and of early-medium maturity.The fruit is round and pink without green shoulder,and single fruit weight is nearly 200 g.It has good commercial quality and a good balance between sweet and sour.It is suitable for protected cultivation in autumn of Liaoning.