The invention belongs to the technical field of transporters in agricultural machinery, and particularly relates to a self-propelled double-track heavy-gradient orchard transporter which is cooperatively driven by a diesel engine and a steel wire. The complete transporter comprises a diesel engine, a transmission gear, an engaging and disengaging gear, a drive assembly, a main frame, bearing wheels, a hop preventing wheel, a track reflexed self-return steel wire hook pile, a horizontal bent steel wire spacing pile, two braking devices, a gradient stoppage glide-preventing safety device, a circular pipe double-track, a self-adapting gradient trailer frame and the like. The invention is characterized in that the front part and the back part of the transporter frame are provided with the steel wire spacing and guiding device, the sideslip preventing bearing wheel, the hop preventing hook wheel, the two braking devices, the breast-pile type glide-preventing safety device, the transmission case and the like. The vertically reflexed part of the double-track is provided with the self-return steel wire hook pile; the horizontal bending part of the track is provided with the steel wire spacing pile; and the transporter is provided with the self-adapting gradient trailer. The transporter can climb up the hillside with the gradient of not greater than 50 degrees when the load is 500 kg, can smoothly climb down the hillside when the load is 1000 kg, and can make a 90-degree turn when the turn radius is not smaller than 8 m.