An LED display panel, comprising: a main frame made of a lightweight material, wherein the main frame comprises a first end surface for mounting a display screen and a second end surface opposing the first end surface; a supporting component, wherein the supporting component comprises a supporting tube and a plurality of supporting members; a plurality of fixing parts are arranged on peripheral edges of the second end surface, and the plurality of supporting members are mounted on the plurality of fixing parts corresponding to the plurality of supporting members; a tube fixing part (2214, 2215) is arranged on an end of the supporting member, wherein the end of the supporting member is far away from the second end surface, and the supporting tube is fixed on the tube fixing part; and characterized in that a control box, wherein a power supply, a control system and a signal transmission system are arranged in the control box, and the control system and the signal transmission system are electrically connected to the power supply; and the control box is mounted on the second end surface, the control box comprises: a box body, wherein the box body comprises a cover body and a base; the cover body is provided with a cavity having an opening; the control system and the signal transmission system are mounted in the cavity, and the base covers onto the opening of the cavity; and a power supply component, wherein the power supply component comprises a power supply mounting member and a power supply; the power supply is mounted on the power supply mounting member, and the control system and the signal transmission system are electrically connected to the power supply; wherein, a power supply component mounting groove is arranged at an end surface of the cover body, wherein the end surface of the cover body is opposing the opening of the cavity, and the power supply component mounting groove communicates with the cavity; the power supply is detachably mounted on the power supply component mounting groove through the power supply mounting member, the cover body is provided with a clamping notch and the power supply mounting member is provided with a clamping platform; and the clamping platform is engaged with the clamping notch, and the clamping notch is formed by crossing convex ribs extended from the cover body, such that the cover body is a hollow structure having a maximum area. a main frame made of a lightweight material, wherein the main frame comprises a first end surface for mounting a display screen and a second end surface opposing the first end surface; a supporting component, wherein the supporting component comprises a supporting tube and a plurality of supporting members; a plurality of fixing parts are arranged on peripheral edges of the second end surface, and the plurality of supporting members are mounted on the plurality of fixing parts corresponding to the plurality of supporting members; a tube fixing part (2214, 2215) is arranged on an end of the supporting member, wherein the end of the supporting member is far away from the second end surface, and the supporting tube is fixed on the tube fixing part; and characterized in that a control box, wherein a power supply, a control system and a signal transmission system are arranged in the control box, and the control system and the signal transmission system are electrically connected to the power supply; and the control box is mounted on the second end surface, the control box comprises: a box body, wherein the box body comprises a cover body and a base; the cover body is provided with a cavity having an opening; the control system and the signal transmission system are mounted in the cavity, and the base covers onto the opening of the cavity; and a power supply component, wherein the power supply component comprises a power supply mounting member and a power supply; the power supply is mounted on the power supply mounting member, and the control system and the signal transmission system are electrically connected to the power supply; a box body, wherein the box body comprises a cover body and a base; the cover body is provided with a cavity having an opening; the control system and the signal transmission system are mounted in the cavity, and the base covers onto the opening of the cavity; and a power supply component, wherein the power supply component comprises a power supply mounting member and a power supply; the power supply is mounted on the power supply mounting member, and the control system and the signal transmission system are electrically connected to the power supply; wherein, a power supply component mounting groove is arranged at an end surface of the cover body, wherein the end surface of the cover body is opposing the opening of the cavity, and the power supply component mounting groove communicates with the cavity; the power supply is detachably mounted on the power supply component mounting groove through the power supply mounting member, the cover body is provided with a clamping notch and the power supply mounting member is provided with a clamping platform; and the clamping platform is engaged with the clamping notch, and the clamping notch is formed by crossing convex ribs extended from the cover body, such that the cover body is a hollow structure having a maximum area.