A method for manufacturing an austenitic stainless steel from a nickel laterite ore and a chromite ore, said method being characterized by steps of: a) determining whether a nickel content of the nickel laterite ore is less than 1.5 wt% based on total weight of the nickel laterite ore; b) processing the nickel laterite ore into a nickel-containing precursor based on the determination made in step a), wherein the nickel-containing precursor comprises a molten ferronickel or a pure nickel or a combination thereof, and characterized in that, when the nickel content of the nickel laterite ore is determined to be not less than 1.5 wt%, the nickel-containing precursor is a molten ferronickel, and step b) is conducted by crushing, screening, and blending the nickel laterite ore, followed by roasting the nickel laterite ore in a rotary kiln to remove free water and crystallization water along with charging a reducing agent into the rotary kiln to obtain a calcine, and smelting the calcine in another electric furnace to obtain the molten ferronickel; when the nickel content of the nickel laterite ore is determined to be less than 1.5 wt%, the nickel-containing precursor is pure nickel, and step b) is conducted by crushing the nickel laterite ore and pulping the nickel laterite ore with water to form a pulp material, followed by agitating the pulp material with a sulfuric acid solution under a high pressure atmosphere to form a mixture, filtering a leach solution containing nickel and cobalt out of the mixture, separating the leach solution by solvent extraction into an extraction solution containing nickel and an anti-extraction solution containing cobalt, and electrolyzing the extraction solution and the anti-extraction solution to obtain pure nickel and pure cobalt, respectively; c) sintering the chromite ore in a sintering device to obtain a sintered chromite ore, followed by smelting the sintered chromite ore along with a coke particle in an electric furnace to obtain a molten ferrochrome; d) transferring the nickel-containing precursor into a converter, and hot charging the molten ferrochrome into the converter to obtain a molten stainless steel, the nickel-containing precursor transferred into the converter including the molten ferronickel and the pure nickel; and e) charging the molten stainless steel into a continuous casting machine to obtain a stainless steel slab. a) determining whether a nickel content of the nickel laterite ore is less than 1.5 wt% based on total weight of the nickel laterite ore; b) processing the nickel laterite ore into a nickel-containing precursor based on the determination made in step a), wherein the nickel-containing precursor comprises a molten ferronickel or a pure nickel or a combination thereof, and characterized in that, when the nickel content of the nickel laterite ore is determined to be not less than 1.5 wt%, the nickel-containing precursor is a molten ferronickel, and step b) is conducted by crushing, screening, and blending the nickel laterite ore, followed by roasting the nickel laterite ore in a rotary kiln to remove free water and crystallization water along with charging a reducing agent into the rotary kiln to obtain a calcine, and smelting the calcine in another electric furnace to obtain the molten ferronickel; when the nickel content of the nickel laterite ore is determined to be less than 1.5 wt%, the nickel-containing precursor is pure nickel, and step b) is conducted by crushing the nickel laterite ore and pulping the nickel laterite ore with water to form a pulp material, followed by agitating the pulp material with a sulfuric acid solution under a high pressure atmosphere to form a mixture, filtering a leach solution containing nickel and cobalt out of the mixture, separating the leach solution by solvent extraction into an extraction solution containing nickel and an anti-extraction solution containing cobalt, and electrolyzing the extraction solution and the anti-extraction solution to obtain pure nickel and pure cobalt, respectively; c) sintering the chromite ore in a sintering device to obtain a sintered chromite ore, followed by smelting the sintered chromite ore along with a coke particle in an electric furnace to obtain a molten ferrochrome; d) transferring the nickel-containing precursor into a converter, and hot charging the molten ferrochrome into the converter to obtain a molten stainless steel, the nickel-containing precursor transferred into the converter including the molten ferronickel and the pure nickel; and e) charging the molten stainless steel into a continuous casting machine to obtain a stainless steel slab.