A razor head, comprising: a head frame having a front frame wall, a rear frame wall and-a two side frame walls, the front frame wall and the rear frame wall arranged in a lengthwise direction of the head frame, with a determined spacing, and integrated together by means of the side frame walls; a razor blade arranged along a lengthwise direction of the head frame and between the front frame wall and the rear frame wall, and adapted to assemble on the side frame walls, with a cutting edge of the razor blade facing the front frame wall; an independent trimming unit arranged along the lengthwise direction of the head frame and adapted to assemble on the side frame walls, with a receiving groove being defined by the trimming unit and the rear frame wall and arranged along the lengthwise direction of the head frame; and a lubricating strip arranged along the lengthwise direction of the head frame and inserted into the receiving groove, and the lubricating strip being clamped by the trimming unit and the rear frame wall; and the razor head characterized in that, the rear frame wall comprises a separating plate and a connecting plate which are connected together and formed in an L-shape; the trimming unit comprises a supporting plate formed in an inverted L-shape that is opposite to the L-shape of the rear frame wall and a trimming blade connected to the supporting plate; an upper end of the supporting plate is located at a side of the head frame where the cutting edge is located, and the trimming blade is configured on a lower end of the supporting plate; and the supporting plate and the separating plate are arranged side by side to define the receiving groove. a head frame having a front frame wall, a rear frame wall and-a two side frame walls, the front frame wall and the rear frame wall arranged in a lengthwise direction of the head frame, with a determined spacing, and integrated together by means of the side frame walls; a razor blade arranged along a lengthwise direction of the head frame and between the front frame wall and the rear frame wall, and adapted to assemble on the side frame walls, with a cutting edge of the razor blade facing the front frame wall; an independent trimming unit arranged along the lengthwise direction of the head frame and adapted to assemble on the side frame walls, with a receiving groove being defined by the trimming unit and the rear frame wall and arranged along the lengthwise direction of the head frame; and a lubricating strip arranged along the lengthwise direction of the head frame and inserted into the receiving groove, and the lubricating strip being clamped by the trimming unit and the rear frame wall; and the razor head characterized in that, the rear frame wall comprises a separating plate and a connecting plate which are connected together and formed in an L-shape; the trimming unit comprises a supporting plate formed in an inverted L-shape that is opposite to the L-shape of the rear frame wall and a trimming blade connected to the supporting plate; an upper end of the supporting plate is located at a side of the head frame where the cutting edge is located, and the trimming blade is configured on a lower end of the supporting plate; and the supporting plate and the separating plate are arranged side by side to define the receiving groove.