The invention provides an ultra-high-pressure angular domain variable-speed flow-jet grouting method and a curtain wall. The ultra-high-pressure angular domain variable-speed flow-jet grouting methodcomprises the steps that a solidification area is determined, and the width variation value of the solidification area is less than a set threshold value; the solidification area is divided into N grouting sections in the length direction, wherein the length of the i grouting section is twice the jet distance of a grouting pipe; grouting operation from low to high is conducted on the solidification area; when the i grouting section is grouted, the grouting pipe is arranged at the central axis of the i grouting section for lifting while rotary spouting, the rotating speed of the grouting pipe is controlled according to the distance between a mortar outlet of the grouting pipe and the edge of the i grouting section, and the greater the distance between the mortar outlet and the edge is, the lower the rotating speed of the grouting pipe is. By adopting the ultra-high-pressure angular domain variable-speed flow-jet method, the problem of waste of rotary jet materials is solved, and it can be further ensured that the thickness of a wall body is basically uniform.