A light-emitting substrate, comprising a plurality of light-emitting units, a plurality of first voltage lines, and a plurality of first transmission lines, wherein the plurality of light-emitting units are arranged in an N*M array with N rows extended along a first direction and M columns extended along a second direction, the first direction and the second direction intersecting with each other, and each of the plurality of light-emitting units comprises a first voltage terminal; the plurality of first voltage lines are assigned in one-to-one correspondence with the plurality of columns of light-emitting units, and are each configured to transmit a first voltage signal, and a first voltage line of the plurality of first voltage lines comprises a first portion, a first connecting portion, and a second portion connected sequentially; the first portion extends along the second direction and is electrically connected with first voltage terminals of the first row of light-emitting units to a Y-th row of light-emitting units in the column corresponding to said one first voltage line; wherein, an extension direction of the second portion of said one first voltage line among the plurality of first voltage lines is inclined with respect to both the first direction and the second direction; the first connecting portion is located at the boundary of the Y-th row of light-emitting units and the (Y+1)-th row of light-emitting units, and electrically connects the first portion to the second portion; the plurality of first transmission lines are assigned in one-to-one correspondence with the plurality of columns of light-emitting units, first voltage terminals of the (Y+1)-th row of light-emitting units to the N-th row of the light-emitting units in the column corresponding to said one first voltage line are connected by a corresponding first transmission line of the plurality of the first transmission lines, and said one corresponding first transmission line is further electrically connected to the first connecting portion of said one first voltage line corresponding to the light-emitting units of the corresponding column; and N is an integer greater than 0, M is an integer greater than 0, and 0<Y<N and Y is an integer. wherein the plurality of light-emitting units are arranged in an N*M array with N rows extended along a first direction and M columns extended along a second direction, the first direction and the second direction intersecting with each other, and each of the plurality of light-emitting units comprises a first voltage terminal; the plurality of first voltage lines are assigned in one-to-one correspondence with the plurality of columns of light-emitting units, and are each configured to transmit a first voltage signal, and a first voltage line of the plurality of first voltage lines comprises a first portion, a first connecting portion, and a second portion connected sequentially; the first portion extends along the second direction and is electrically connected with first voltage terminals of the first row of light-emitting units to a Y-th row of light-emitting units in the column corresponding to said one first voltage line; wherein, an extension direction of the second portion of said one first voltage line among the plurality of first voltage lines is inclined with respect to both the first direction and the second direction; the first connecting portion is located at the boundary of the Y-th row of light-emitting units and the (Y+1)-th row of light-emitting units, and electrically connects the first portion to the second portion; the plurality of first transmission lines are assigned in one-to-one correspondence with the plurality of columns of light-emitting units, first voltage terminals of the (Y+1)-th row of light-emitting units to the N-th row of the light-emitting units in the column corresponding to said one first voltage line are connected by a corresponding first transmission line of the plurality of the first transmission lines, and said one corresponding first transmission line is further electrically connected to the first connecting portion of said one first voltage line corresponding to the light-emitting units of the corresponding column; and N is an integer greater than 0, M is an integer greater than 0, and 0<Y<N and Y is an integer.