A memory module card structure includes a main board, a plurality of adhesive layers and a plurality of conduction skirting boards. Two surfaces of the main board respectively are divided into a mounting section and an inserting section. The inserting section is formed with a binding region, and a soldering region having solder pads electrically connected to the mounting section. The conduction skirting boards are correspondingly fixed to the inserting section, and each has a rigid substrate and a plurality of conductive pads. The conductive pad has an outer contacting part disposed on an outer surface of the rigid substrate and an adapting part formed through the rigid substrate and connecting the outer contacting part. A part of the conductive pad correspondingly is soldered to the solder pad. A part of the rigid substrate is fixed connected to the binding region by the adhesive layer.