Abstract：‘Sufen No.12’is a new middle early maturity tomato F1 hybrid developed by crossing TY-06-4 as female parent and TY-06-1 as male parent．It is of indeterminate growth type，with strong growth vigor．Its first inflorescence is setting in the 8-9th leaf nods．The fruit is nearly round with smooth surface．It is good for storage and transportation．The matured fruit is pink in color．The average weight of single fruit is about 200 g．The soluble solid content is about 5.0%．It has excellent quality．It is highly resistant to TYLCV．It has higher resistance to leaf mold，ToMV，Fusarium wilt than‘sufen No.8’and‘Jinpeng No. 1’．The average yield is 105 t?hm-2．It is suitable for cultivation in areas suffering seriously from TYLCV.
