Abstract: A detachable lamp holder (1) of a LED lamp has a cover-shaped shell (11) matched with a LED tube (2). The bottom of the cover-shaped shell (11) is provided with pins (12) connecting to the power supply and LED light sources. The cover-shaped shell (11) comprises a hollow sleeve (116) and a hollow sleeve cover (111) being detachably connected, and a base (113) coaxially disposed between the sleeve (116) and the sleeve cover (111). The base (113) forms the bottom part of the cover-shaped shell (11), and the pins (12) are fixed to the base (113). When the LED lamp is partially damaged and needs to be maintained or replaced, the sleeve cover (111) as a part of the lamp holder is screwed off, and the lamp holder and the PCB in the lamp tube can be taken off, thus realizing easy maintenance and replacement.