The research of the geophysical survey in theeast of the southern Yellow Sea (SYS) (122°-125°E) in 1999reveals that the SYS has a structure of three-uplifts andtwo-basins. The structure can be well concordant with thegravity and magnetic anomalies. In the basins, most of thegravity and magnetic anomalies are low and gentle. As wellin the uplifts, the gravity anomalies are high positive ones,but the magnetic anomalies are plus and minus variant ones.Seismic data show that the mid-uplift is a Cenozoic one. ThePaleozoic is under the Q+N strata, the thickness of which isless than 1 km, with no Palaeogene. The Wunansha upliftarea and the Sunan uplift area have good continuity, whichindicates that they belong to the same geological unit. Thebasin in the northern part of SYS, which developed in thelate Cretaceous period, is a Cenozoic one mainly made up ofCenozoic sediment. On the contrary, the basin in the south-ern part is the seaward extension of Subei basin and is a me-dial Cenozoic sediment basin mainly made up of Cenozoicsediment. Because of the striking left-lateral sense transla-tion of Tanlu fault zone, the east plate of fault zone movednorthward on a large scale, which generated a massivenorth-south pull-apart stress field to make the earth crustpulled apart, revolved and tilted, and the pulling-apart basincame into being in the upper part of the crust. The research of the geophysical survey in theeast of the southern Yellow Sea (SYS) (122 ° -125 ° E) in 1999reveals that the SYS has a structure of three-uplifts andtwo-basins. The structure can well concordant with the gravity and magnetic anomalies. In the basins, most of thegravity and magnetic anomalies are low and gentle. As wellin the uplifts, the gravity anomalies are high positive ones, but the magnetic anomalies are plus and minus variant ones .Seismic data show that the mid-uplift is The Cenozoic one. ThePaleozoic is under the Q + N strata, the thickness of which is is less than 1 km, with no Palaeogene. The Wunansha upliftarea and the Sunan uplift area have good continuity, whichindicates that they belong to the same geological unit. Thebasin in the northern part of SYS, which developed in the Lateral Cretaceous period, is a Cenozoic one mainly made up of Cenozoic sediment. On the contrary, the basin in the south-ern part is the seaward extension of Subei basin and is a me-dial Cenozoic sed Because of the striking left-lateral sense transla- tion of Tanlu fault zone, the east plate of fault zone moved northward on a large scale, which generated a massive north-south pull-apart stress field to make the earth crustpulled apart, revolved and tilted, and the pulling-apart basincame into being in the upper part of the crust.