The invention provides a module group based modular integration and module group integral rotation mechanism. The mechanism comprises an auxiliary position light sub-assembly, an auxiliary daytime running lamp sub-assembly, an ADB module group sub-assembly, an auxiliary high-low-beam light sub-assembly and a rotation structure sub-assembly, wherein the auxiliary position light sub-assembly, the auxiliary daytime running lamp sub-assembly, the ADB module group sub-assembly and the auxiliary high-low-beam light sub-assembly are all mounted on the rotation structure sub-assembly; the rotation structural sub-assembly comprises a stepping motor, a rotating bracket, a metal holding bracket, a lower half part rotating mechanism and an upper half part rotating mechanism; and the ADB module group sub-assembly is fixed through an ADB module group fixing bracket and then is assembled on the rotation structure sub-assembly. The main function of a module group adopts a module with the ADB function,and the AFS function realizes the compliance steering Swiveling function through the combination of a stepping motor, a spring, a support and the like, so that the modular integrated module group canrealize the purpose that one module group has the ADB and AFS functions at the same time.