A line source lighting system, comprising: lamp holder; a printed circuit board, disposed on the lamp holder; a plurality of point light sources, disposed spaced apart from each other along the length direction of the lamp holder on a light source mounting surface of the printed circuit board; and a strip-shaped convex lens array, disposed on the lamp holder and located in the light-emitting direction of the point light source and arranged along the length direction of the lamp holder configured to convertthe light distribution of each point light source into a linear light distribution as being emitted by a plurality of linear light sources, the line source lighting system further comprising: at least one lens, disposed on the lamp holder and located in a light-emitting direction of the point light source for adjusting the light distribution of the point light source on a plane perpendicular to the length direction of the lamp holder, wherein at least one of the at least one lens is located between the strip-shaped convex lens array and the printed circuit board, wherein the strip-shaped convex lens array and the lens are integrally formed, in particular wherein the lens and the strip-shaped convex lens array are integrated on the same optical film, wherein the strip-shaped convex lens array is disposed on a surface on which the light emitting surface of the lens is located, characterized in that the lens comprises a light transmission main part for focusing most of the light of the point light source, and a light transmission secondary part disposed at a certain angle with one side of the light transmission main part to guide a small part of the light of the point light source. lamp holder; a printed circuit board, disposed on the lamp holder; a plurality of point light sources, disposed spaced apart from each other along the length direction of the lamp holder on a light source mounting surface of the printed circuit board; and a strip-shaped convex lens array, disposed on the lamp holder and located in the light-emitting direction of the point light source and arranged along the length direction of the lamp holder configured to convertthe light distribution of each point light source into a linear light distribution as being emitted by a plurality of linear light sources, the line source lighting system further comprising: at least one lens, disposed on the lamp holder and located in a light-emitting direction of the point light source for adjusting the light distribution of the point light source on a plane perpendicular to the length direction of the lamp holder, wherein at least one of the at least one lens is located between the strip-shaped convex lens array and the printed circuit board, wherein the strip-shaped convex lens array and the lens are integrally formed, in particular wherein the lens and the strip-shaped convex lens array are integrated on the same optical film, wherein the strip-shaped convex lens array is disposed on a surface on which the light emitting surface of the lens is located, characterized in that the lens comprises a light transmission main part for focusing most of the light of the point light source, and a light transmission secondary part disposed at a certain angle with one side of the light transmission main part to guide a small part of the light of the point light source. at least one lens, disposed on the lamp holder and located in a light-emitting direction of the point light source for adjusting the light distribution of the point light source on a plane perpendicular to the length direction of the lamp holder, wherein at least one of the at least one lens is located between the strip-shaped convex lens array and the printed circuit board, wherein the strip-shaped convex lens array and the lens are integrally formed, in particular wherein the lens and the strip-shaped convex lens array are integrated on the same optical film, wherein the strip-shaped convex lens array is disposed on a surface on which the light emitting surface of the lens is located, characterized in that the lens comprises a light transmission main part for focusing most of the light of the point light source, and a light transmission secondary part disposed at a certain angle with one side of the light transmission main part to guide a small part of the light of the point light source.