Height-adjustable and detachable table leg

The utility model relates to the field of table legs, in particular to a height-adjustable and detachable table leg which comprises a table leg pipe, a plastic foot pad and a foot pad. The plastic foot pads are arranged on the inner circumferential walls of the bottoms of the table leg pipes, and through holes are vertically formed in the plastic foot pads. The top of the foot pad is cylindrical, the cylinder is inserted into the through hole of the plastic foot pad, and threads matched with each other are arranged on the hole wall of the through hole and the peripheral wall of the cylinder. Connecting assemblies are arranged on the tops of the table leg pipes, the connecting assemblies are detachably connected with the table leg pipes, and the connecting assemblies are connected with the bottom of the table plate. The problems that a product is inconvenient to disassemble and assemble and high in packaging and transportation cost are solved; reinforcing ribs on the front face of the aluminum alloy supporting