The application provides a shell manufacturing method, a shell, a mold and a mobile terminal. The shell manufacturing method comprises the following steps: providing a shell matrix, wherein the shellmatrix comprises a first surface and a second surface opposite to each other; forming an antenna slit penetrating the first surface and the second surface; filling the glue in the antenna slit to forma first sealing layer; covering the glue at the preset region of the first surface while forming the first sealing layer, thereby forming a first coverage layer; processing the first coverage layer into a pattern with the preset shape so as to obtain a second coverage layer; performing surface processing on the region which is uncovered by the second coverage layer on the shell matrix, thereby changing the brightness; and removing the second coverage layer so as to form the pattern with the preset shape on the shell matrix.