A plane external collapse preventive filling wall comprises concrete columns, concrete beam plates and a filling wall body, and is characterized in that tie bars for connecting the concrete columns with the filling wall body are arranged continuously in a length direction, and vertical angle iron is arranged at positions, which contact with the concrete columns, of two ends of the filling wall body, so that the filling wall body is clamped. By the aid of the tie bars which are arranged continuously in the length direction, deformation resistance ability of mortar joints of the filling wall body is improved, the fixing angle iron is arranged on the periphery of the filling wall body so as to restrain the filling wall body, and the fixing angle iron and the tie bars jointly match with each other to control plane external deformation of the wall body.