An embedded positioning spinning method, comprising the following steps: on each drafting mechanism of a ring spinning frame, introducing two staple-fiber rovings (a, a') unwound from roving bobbins into a drafting area though a guide trumpet in parallel so as to be drafted, wherein there are a rear roller, a rear leather roller, a middle roller, a middle leather roller, an apron, a front roller and a front leather roller in the drafting area, feeding two filaments (b, b') in parallel under guiding of a location guide wire or a guide wheel from the back of the front roller, wherein the two filaments (b, b') are parallel to the two rovings (a, a'), there is a defined distance between each of the two filaments (b, b') and corresponding one of the two rovings (a, a') in a space defined by the front roller and the front leather roller, and wherein the parallel filaments (b, b') are fed via the location guide wire or the guide wheel, and at a front jaw between the front roller and the front leather roller, the parallel filaments (b, b') are arranged at the inner side of the parallel rovings (a, a'); or the parallel filaments (b, b') are arranged at the outer side of the parallel rovings (a, a'); or the parallel filaments (b, b') are alternately arranged with the parallel rovings (a, a'), combining the first filament (b) with the first roving (a), and combining the second filament (b') with the second roving (a') after passing through the front jaw, twisting the two drafted first and second rovings (a, a') and two first and second filaments (b, b') output from the front jaw in a twisting triangle area, and winding the twisted yarn on a yarn bobbin via a guide wire. on each drafting mechanism of a ring spinning frame, introducing two staple-fiber rovings (a, a') unwound from roving bobbins into a drafting area though a guide trumpet in parallel so as to be drafted, wherein there are a rear roller, a rear leather roller, a middle roller, a middle leather roller, an apron, a front roller and a front leather roller in the drafting area, feeding two filaments (b, b') in parallel under guiding of a location guide wire or a guide wheel from the back of the front roller, wherein the two filaments (b, b') are parallel to the two rovings (a, a'), there is a defined distance between each of the two filaments (b, b') and corresponding one of the two rovings (a, a') in a space defined by the front roller and the front leather roller, and wherein the parallel filaments (b, b') are fed via the location guide wire or the guide wheel, and at a front jaw between the front roller and the front leather roller, the parallel filaments (b, b') are arranged at the inner side of the parallel rovings (a, a'); or the parallel filaments (b, b') are arranged at the outer side of the parallel rovings (a, a'); or the parallel filaments (b, b') are alternately arranged with the parallel rovings (a, a'), combining the first filament (b) with the first roving (a), and combining the second filament (b') with the second roving (a') after passing through the front jaw, twisting the two drafted first and second rovings (a, a') and two first and second filaments (b, b') output from the front jaw in a twisting triangle area, and winding the twisted yarn on a yarn bobbin via a guide wire.