The invention relates to a rotor spinning method for high-strength yarns. The high-strength yarns are spun through the spinning technology, and in the spinning technology, eddy-eliminated channels of an eddy-eliminated rotor spinner comprise the fiber conveying channel and the bypass channel communicated with the atmosphere; the central axis of the bypass channel and the central axis of the fiber conveying channel are located on the same straight line, and the bypass channel is located in the direction opposite to the fiber conveying direction in the fiber conveying channel; the eddy-eliminated channels are connected with a corresponding notch of a carding roller housing through an inlet of the fiber conveying channel; connecting parts of the fiber conveying channel and the carding roller housing are in circular arc transition connection. According to the rotor spinning method for high-strength yarns, the carding roller housing and the fiber conveying channel are in circular arc connection, and air flow is supplemented through the bypass channel, so that it is assisted that eddies generated near the inlet of the fiber conveying channel are eliminated, the bad forms of bending, hook bending, folding and the like of fibers are reduced, the parallel unbending degree of fibers is increased, and the final finished yarn strength is also improved.