The invention discloses an LED flame lamp adopting flame light-emitting assemblies on both sides. The LED flame lamp comprises a lamp cap, a bulb shell, a light guide barrel and a flame light source board, wherein the bulb shell is arranged at the opening of the inner wall of the lamp cap, the light guide barrel is arranged in the bulb shell, the flame light source board is arranged in the light guide barrel, the flame light source board comprises a double-side circuit substrate, LED lamp beads and a drive power supply, the LED lamp beads are welded to the front and back sides of the double-side circuit substrate, the LED lamp beads and the drive power supply on the flame light source board can be welded to one double-side circuit substrate, so that the flame light source board in an integrated structure is formed, or the LED lamp beads and the drive power supply can be respectively welded to two circuit substrates, so that the flame light source board in split structures is formed. For the LED flame lamp adopting the flame light-emitting assemblies on both sides, the use number of the LED lamp beads can be greatly reduced, thus the manufacturing cost is reduced, in addition, the light emitting effect is softer, the luminance of the dark area is improved, the fixing effect of the flame light source board in the light guide barrel is improved, then the assembly efficiency can beimproved, the manual labor is reduced, the rejection rate is reduced, the automatic production is realized, and the market competitiveness of the product is strong.