The invention discloses an improved energy-saving-type LED lamp. The improved energy-saving-type LED lamp comprises a base arranged in the indoor wall and an LED lamp body for being connected with thebase in a matched mode, a left inserting groove and a right inserting groove which upwards extend are formed in the bottom end face of the base, and a sliding locking groove is formed between the left inserting groove and the right inserting groove in a communicating mode. A containing groove opposite to the sliding locking groove is formed in the left end wall of the left inserting groove, an electricity supply end elastic head is arranged on the top end wall of the left inserting groove, and a sliding locking block capable of sliding in the left-right direction is arranged in the sliding locking groove. A penetrating groove is formed in the sliding locking block in a vertical penetrating mode, and an upper sliding groove and a lower sliding groove are formed in the upper end wall and the lower end wall of the sliding locking groove correspondingly. In the improved energy-saving-type LED lamp, the LED lamp is firmly locked, powering-on of the LED lamp is safe and stable, in mounting,the LED lamp is powered on while the LED lamp is locked, in dismounting, the LED lamp is unlocked while the LED lamp is powered off, the mounting and dismounting efficiency of the LED lamp is greatlyimproved, the electric shock accident occurring when the LED lamp is mounted and dismounted is effectively avoided, and the life safety of workers is ensured.