An LED module, comprising a PCB, LEDs, a mask and a device for bending the PCB; wherein the PCB comprises a first outside surface and a second outside surface opposite to the first outside surface, the LEDs are disposed on the first outside surface of the PCB; the mask is disposed on the first outside surface of the PCB and covers the LEDs; wherein the device comprises at least two abutting members, and the two abutting members are respectively defined as a first abutting member and a second abutting member; the first abutting member is fixedly connectable to and disposed on the second outside surface of the PCB, the second abutting member is fixedly connectable to and disposed on the second outside surface of the PCB and is rotatably connected to the first abutting member; wherein a rotating position and a locking position are provided at the connection of the first abutting member and the second abutting member, the first abutting member and the second abutting member are capable of rotating relative to each other at the rotating position, and the first abutting member and the second abutting member are capable of being interlocked with each other at the locking position so as to obtain a desired curvature of the PCB; the at least two abutting members are on an inner side of the desired curvature of the PCB, and the inner side of the desired curvature of the PCB corresponds to the second outside surface of the PCB; wherein the first abutting member comprises a first abutting plate fixedly connectable to the second outside surface of the PCB and a first adjusting component disposed on the first abutting plate; the second abutting member comprises a second abutting plate fixedly connectable to the second outside surface of the PCB and a second adjusting component disposed on the second abutting plate; wherein the first adjusting component is provided with a first locking protrusion extending from a side portion of the first adjusting component, the second adjusting component is provided with a first locking slot corresponding to the first locking protrusion, the first adjusting component is rotatably connected to the second adjusting component by the connection between the first locking protrusion and the first locking slot, wherein both the rotating position and the locking position are formed at the connection of the first adjusting component and the second adjusting component, wherein both the first adjusting component and the second adjusting component are in the shape of "E" and the first locking protrusion is in the shape of "T". wherein the PCB comprises a first outside surface and a second outside surface opposite to the first outside surface, the LEDs are disposed on the first outside surface of the PCB; the mask is disposed on the first outside surface of the PCB and covers the LEDs; wherein the device comprises at least two abutting members, and the two abutting members are respectively defined as a first abutting member and a second abutting member; the first abutting member is fixedly connectable to and disposed on the second outside surface of the PCB, the second abutting member is fixedly connectable to and disposed on the second outside surface of the PCB and is rotatably connected to the first abutting member; wherein a rotating position and a locking position are provided at the connection of the first abutting member and the second abutting member, the first abutting member and the second abutting member are capable of rotating relative to each other at the rotating position, and the first abutting member and the second abutting member are capable of being interlocked with each other at the locking position so as to obtain a desired curvature of the PCB; the at least two abutting members are on an inner side of the desired curvature of the PCB, and the inner side of the desired curvature of the PCB corresponds to the second outside surface of the PCB; wherein the first abutting member comprises a first abutting plate fixedly connectable to the second outside surface of the PCB and a first adjusting component disposed on the first abutting plate; the second abutting member comprises a second abutting plate fixedly connectable to the second outside surface of the PCB and a second adjusting component disposed on the second abutting plate; wherein the first adjusting component is provided with a first locking protrusion extending from a side portion of the first adjusting component, the second adjusting component is provided with a first locking slot corresponding to the first locking protrusion, the first adjusting component is rotatably connected to the second adjusting component by the connection between the first locking protrusion and the first locking slot, wherein both the rotating position and the locking position are formed at the connection of the first adjusting component and the second adjusting component, wherein both the first adjusting component and the second adjusting component are in the shape of "E" and the first locking protrusion is in the shape of "T".