The invention relates to a changing method for a curve segment plate-type rail plate of a ballastless rail. The changing method belongs to the changing technology of a rail plate, and is special for that after curve segment rail plate to be changed is determined, a front fastener and a back fastener of the curve segment rail plate to be changed are loosened a certain length, a steel rail at the high side is lifted a certain height, and after the steel rail at the low side is stretched open a certain distance outward, a sling for lifting loads with lifting points is fixedly installed in the rail plate through lifting holes of the rail plate; the lifting points at the low side are located in the lateral side of the rail plate, and the lifting points at the high side are located in the inner side of the steel rail at the high side; a rail crane lifts the rail plate to translate transversally toward to the low side direction, when the edge of the rail plate at the high side moves out the steel rail at the high side, the rail crane lifts a old rail plate upward, so that the old rail plate can be taken out; the process of changing a new plate is the inverse process of process above, after the new plate is in position, accurate adjusting is conducted, and after the steel rail and fasteners are recovered, circuits are opened.