A lithium ion secondary battery, comprising a positive electrode plate, a negative electrode plate, a separator, and an electrolyte; wherein the positive electrode plate comprises a positive electrode current collector and a positive electrode layer disposed on at least one surface of the positive electrode current collector, wherein the positive electrode layer comprises a positive electrode active material; and the negative electrode plate comprises a negative electrode current collector and a negative electrode layer coated on at least one surface of the negative electrode current collector, the negative electrode layer comprising a negative electrode active material; wherein the positive electrode active material comprises one or more selected from the group of lithium nickel cobalt manganese oxide and lithium nickel cobalt aluminum oxide, and the negative electrode active material comprises a graphite material, and the negative electrode active material further comprises one or more of soft carbon, hard carbon, and lithium titanate, and the negative electrode layer fulfills the condition: 1.18 ≤ 7.8 / D 50 + 1.9 × D 50 / V OI 2 ≤ 1.32 wherein D50 represents a volume distribution average particle diameter of particles of the negative electrode active material in micron, determined by the method as described in the description, Voi represents the orientation index value of the negative electrode layer, which is calculated according to the method as described in the description wherein C 004 was the peak area of the 004 characteristic diffraction peak in X-ray diffraction spectrum of the negative electrode layer, and C 110 is the peak area of the 110 characteristic diffraction peak in X-ray diffraction spectrum of the negative electrode layer, and the OI value of the negative electrode layer is 10-14, the negative electrode active material has an average particle diameter D50 of 6.5 μm ≤ D50 ≤ 7 μm, and a degree of graphitization G of the negative electrode active material is 88%-91%, determined by the method as described in the description, wherein the negative electrode active material fulfills the condition: 6.7 ≤ D 50 × 0.625 + G × 3 ≤ 7.11, and wherein the negative electrode layer fulfills the condition: 0.166 ≤ A / B ≤ 0.197 wherein A = 7.8 / D 50 + 1.9 × D 50 / V OI 2 B = D 50 × 0.625 + G × 3. Voi represents the orientation index value of the negative electrode layer, which is calculated according to the method as described in the description wherein C 004 was the peak area of the 004 characteristic diffraction peak in X-ray diffraction spectrum of the negative electrode layer, and C 110 is the peak area of the 110 characteristic diffraction peak in X-ray diffraction spectrum of the negative electrode layer, and the OI value of the negative electrode layer is 10-14, the negative electrode active material has an average particle diameter D50 of 6.5 μm ≤ D50 ≤ 7 μm, and a degree of graphitization G of the negative electrode active material is 88%-91%, determined by the method as described in the description, wherein the negative electrode active material fulfills the condition: 6.7 ≤ D 50 × 0.625 + G × 3 ≤ 7.11, and wherein the negative electrode layer fulfills the condition: 0.166 ≤ A / B ≤ 0.197 wherein A = 7.8 / D 50 + 1.9 × D 50 / V OI 2 B = D 50 × 0.625 + G × 3.