The present invention relates to an upper and lower two-way logistics rail construction method. A stay cable overhead rail manufactured by the method comprises a stay cable tower, an overhead rail constructed by using the stay cable tower as the basis, and stay cables connecting with the stay cable tower and the overhead rail. The stay cable overhead rail is characterized in that the overhead rail is a double-layer structure, the upper-layer structure is the upper dual rails, and the lower-layer structure is the lower dual rails; the upper dual rails and the lower dual rails are used as a connection interface of the overhead rail and a logistics vehicle, a wheel group at the top of the logistics vehicle is in rolling connection with the lower dual rails, and the upper dual rails and the lower dual rails are connected via connecting rods, transmit the gravity to the ground by the stay cables and the stay cable tower, and are equipped with the logistics vehicle power supply electrical connection interfaces respectively. According to the present invention, a low environmental load transport pathway is provided for the grain energy which is possibly produced from the vast and undeveloped land, even 20% of the uncultured land is constructed into the production base of the grain, the bioplastic and the energy, more than three trillion yuan of wealth can be increased at every year.