A waterproof assembly, applied to a display screen, the display screen comprising a cabinet and a display module connected with the cabinet, an installation space being defined between the display module and the cabinet, wherein the waterproof assembly is disposed in the installation space and comprises: a bottom surface and a waterproof substrate protruded from the bottom surface along a first direction, the waterproof substrate comprising: two mounting surfaces disposed facing in a same direction; and at least one waterproof protrusion protruded from at least one of the two mounting surfaces and comprising: a protrusion body connected with the mounting surface, one end of the protrusion body away from the waterproof substrate comprising a connecting end surface; and at least two waterproof ribs, each of the waterproof ribs being protruded from the connecting end surface respectively and being gradually inclined outwardly in a direction away from the connecting end surface respectively; wherein the two mounting surfaces are disposed facing in the same direction along the first direction, the waterproof substrate is a ring-shaped structure surrounding a data interface of the display module; a communication opening is defined in the middle of the waterproof substrate, the protrusion body and the waterproof ribs are arranged around the communication opening; and at least one waterproof protrusion strip is provided on the other one of the two mounting surfaces of the waterproof substrate, the waterproof protrusion strip is spaced from the protrusion body, and the waterproof protrusion strip is arranged around the communication opening. two mounting surfaces disposed facing in a same direction; and at least one waterproof protrusion protruded from at least one of the two mounting surfaces and comprising: a protrusion body connected with the mounting surface, one end of the protrusion body away from the waterproof substrate comprising a connecting end surface; and at least two waterproof ribs, each of the waterproof ribs being protruded from the connecting end surface respectively and being gradually inclined outwardly in a direction away from the connecting end surface respectively; wherein the two mounting surfaces are disposed facing in the same direction along the first direction, the waterproof substrate is a ring-shaped structure surrounding a data interface of the display module; a communication opening is defined in the middle of the waterproof substrate, the protrusion body and the waterproof ribs are arranged around the communication opening; and at least one waterproof protrusion strip is provided on the other one of the two mounting surfaces of the waterproof substrate, the waterproof protrusion strip is spaced from the protrusion body, and the waterproof protrusion strip is arranged around the communication opening. a protrusion body connected with the mounting surface, one end of the protrusion body away from the waterproof substrate comprising a connecting end surface; and at least two waterproof ribs, each of the waterproof ribs being protruded from the connecting end surface respectively and being gradually inclined outwardly in a direction away from the connecting end surface respectively; wherein the two mounting surfaces are disposed facing in the same direction along the first direction, the waterproof substrate is a ring-shaped structure surrounding a data interface of the display module; a communication opening is defined in the middle of the waterproof substrate, the protrusion body and the waterproof ribs are arranged around the communication opening; and at least one waterproof protrusion strip is provided on the other one of the two mounting surfaces of the waterproof substrate, the waterproof protrusion strip is spaced from the protrusion body, and the waterproof protrusion strip is arranged around the communication opening.