An electrolytic copper foil for a lithium secondary battery comprising an original foil and anti-corrosion layers respectively formed on both surfaces (1a, 1b) of the original foil, characterized in that: the electrolytic copper foil is prepared by (i) preparing an electrolyte by adding an additive composed of 2 to 16 mg/L of gelatin and 2 to 16 mg/L of HEC into a copper sulfate containing 50 to 100 g/L of copper and 50 to 150 g/L of sulfuric acid, (ii) applying a current with a current density of 10 ASD to 80 ASD to the electrolyte so that the original foil is electrodeposited on a drum, wherein a first current density applied within 2 to 5 seconds after a plating starts is 1.5 times or above higher than a second current density applied after the first current density is applied and until the plating finishes, and (iii) immersing the original foil in an anti-corrosion solution including 0.5 to 1.5 g/L of chrome and 1.2 g/L of 2-dioxyribose at a liquid temperature of 20°C to 35°C for 0.5 to 2 seconds so as to form the anti-corrosion layers on the both surfaces (1a, 1b) of the original foil, such that a curl indicator C of the electrolytic copper foil, which is defined as 1.21ΔR+1.12ΔCr+0.01ΔG, is 0 or above and 4.0 or below, wherein, the ΔR corresponds to an absolute value of a difference between ten-point average roughness Rz of a first surface of the electrolytic copper foil and ten-point average roughness Rz of a second surface thereof, wherein each ten-point average roughness Rz is measured using SE1700 produced by Kosaka Laboratory Ltd. and has a unit of μm, the ΔCr corresponds to an absolute value of a difference in a chrome-deposited amount of the anti-corrosion layer respectively formed on the both surfaces (1a, 1b) of the original foil, wherein a unit of each chrome-deposited amount is mg/m 2, the ΔG corresponds to an absolute value of a difference between glossiness of the first surface and glossiness of the second surface, the glossinesses of the first and second surfaces measured with an incident angle of 60 degrees by means of a glossmeter according to JIS Z8741, wherein a unit of each glossiness is GU, the ten-point average roughness Rz of the first and second surfaces are respectively 0.2 μm to 2.5 μm, the chrome-deposited amounts of the anti-corrosion layer are respectively 1.0 mg/m 2 or above and 4.5 mg/m 2 or below, the glossiness of the first and second surfaces (1a, 1b) are respectively 10 GU to 450 GU. the electrolytic copper foil is prepared by (i) preparing an electrolyte by adding an additive composed of 2 to 16 mg/L of gelatin and 2 to 16 mg/L of HEC into a copper sulfate containing 50 to 100 g/L of copper and 50 to 150 g/L of sulfuric acid, (ii) applying a current with a current density of 10 ASD to 80 ASD to the electrolyte so that the original foil is electrodeposited on a drum, wherein a first current density applied within 2 to 5 seconds after a plating starts is 1.5 times or above higher than a second current density applied after the first current density is applied and until the plating finishes, and (iii) immersing the original foil in an anti-corrosion solution including 0.5 to 1.5 g/L of chrome and 1.2 g/L of 2-dioxyribose at a liquid temperature of 20°C to 35°C for 0.5 to 2 seconds so as to form the anti-corrosion layers on the both surfaces (1a, 1b) of the original foil, such that a curl indicator C of the electrolytic copper foil, which is defined as 1.21ΔR+1.12ΔCr+0.01ΔG, is 0 or above and 4.0 or below, wherein, the ΔR corresponds to an absolute value of a difference between ten-point average roughness Rz of a first surface of the electrolytic copper foil and ten-point average roughness Rz of a second surface thereof, wherein each ten-point average roughness Rz is measured using SE1700 produced by Kosaka Laboratory Ltd. and has a unit of μm, the ΔCr corresponds to an absolute value of a difference in a chrome-deposited amount of the anti-corrosion layer respectively formed on the both surfaces (1a, 1b) of the original foil, wherein a unit of each chrome-deposited amount is mg/m 2, the ΔG corresponds to an absolute value of a difference between glossiness of the first surface and glossiness of the second surface, the glossinesses of the first and second surfaces measured with an incident angle of 60 degrees by means of a glossmeter according to JIS Z8741, wherein a unit of each glossiness is GU, the ten-point average roughness Rz of the first and second surfaces are respectively 0.2 μm to 2.5 μm, the chrome-deposited amounts of the anti-corrosion layer are respectively 1.0 mg/m 2 or above and 4.5 mg/m 2 or below, the glossiness of the first and second surfaces (1a, 1b) are respectively 10 GU to 450 GU.