A face image straight line processing method, comprising: performing (101, 402) face detection and straight line detection on an image to be processed, and thereby determining positions of face frames and start coordinates and end coordinates of straight lines in the image; determining (102, 405) attributes of each of the straight lines based on the positions of the face frames and the start coordinates and the end coordinates of the straight lines, wherein the attributes of each of the straight lines comprise a length of the straight line and relative positions of the straight line relative to the face frames; extracting (103, 406), based on the attributes of each of the straight lines, an effective straight line set to be protected from the straight lines; and keeping (104, 407), during performing face distortion correction on the image to be processed, relative positions of points on each of effective straight lines in the effective straight line set unchanged; after the extracting (103, 406), based on the attributes of each of the straight lines, an effective straight line set to be protected from the straight lines, the method further comprises: determining a current face frame to be corrected based on the positions of the face frames; and filtering the effective straight lines based on relative positions of the straight lines relative to the current face frame to be corrected; characterized in that the extracting (103, 406), based on the attributes of each of the straight lines, an effective straight line set to be protected from the straight lines comprises: extracting candidate straight lines each with a length greater than a first threshold from the straight lines; determining whether the candidate straight lines comprise two candidate straight lines with an included angle therebetween less than a second threshold and a distance therebetween less than a third threshold; and merging, in response to the candidate straight lines being determined as comprising the two candidate straight lines, the two candidate straight lines, to thereby generate an effective straight line. performing (101, 402) face detection and straight line detection on an image to be processed, and thereby determining positions of face frames and start coordinates and end coordinates of straight lines in the image; determining (102, 405) attributes of each of the straight lines based on the positions of the face frames and the start coordinates and the end coordinates of the straight lines, wherein the attributes of each of the straight lines comprise a length of the straight line and relative positions of the straight line relative to the face frames; extracting (103, 406), based on the attributes of each of the straight lines, an effective straight line set to be protected from the straight lines; and keeping (104, 407), during performing face distortion correction on the image to be processed, relative positions of points on each of effective straight lines in the effective straight line set unchanged; after the extracting (103, 406), based on the attributes of each of the straight lines, an effective straight line set to be protected from the straight lines, the method further comprises: determining a current face frame to be corrected based on the positions of the face frames; and filtering the effective straight lines based on relative positions of the straight lines relative to the current face frame to be corrected; characterized in that the extracting (103, 406), based on the attributes of each of the straight lines, an effective straight line set to be protected from the straight lines comprises: extracting candidate straight lines each with a length greater than a first threshold from the straight lines; determining whether the candidate straight lines comprise two candidate straight lines with an included angle therebetween less than a second threshold and a distance therebetween less than a third threshold; and merging, in response to the candidate straight lines being determined as comprising the two candidate straight lines, the two candidate straight lines, to thereby generate an effective straight line. determining a current face frame to be corrected based on the positions of the face frames; and filtering the effective straight lines based on relative positions of the straight lines relative to the current face frame to be corrected; characterized in that the extracting (103, 406), based on the attributes of each of the straight lines, an effective straight line set to be protected from the straight lines comprises: extracting candidate straight lines each with a length greater than a first threshold from the straight lines; determining whether the candidate straight lines comprise two candidate straight lines with an included angle therebetween less than a second threshold and a distance therebetween less than a third threshold; and merging, in response to the candidate straight lines being determined as comprising the two candidate straight lines, the two candidate straight lines, to thereby generate an effective straight line. extracting candidate straight lines each with a length greater than a first threshold from the straight lines; determining whether the candidate straight lines comprise two candidate straight lines with an included angle therebetween less than a second threshold and a distance therebetween less than a third threshold; and merging, in response to the candidate straight lines being determined as comprising the two candidate straight lines, the two candidate straight lines, to thereby generate an effective straight line.