The CP violation concluded from the neutral Kaon decays in 1964 causes our curiosity about whether it is true or not. The experimentally observed particles are thought to be the short-lived K1 and long-lived K2 mesons as mentioned in 1964, not K_1^0 and K_2^0, the two eigenstates of CP. According to the conservation of CP, K_1^0 is responsible for the 2π decay and K_2^0 for the 3π. In the 1964 explanation, the short-lived K1 was thought to decay totally and only the long-lived K2 was survival after traveling 57 feet. Then the conclusion considered K2 to be the superposition of both K_1^0 and K_2^0 states so it claimed to reveal the CP violation on K2. However, the so-called CP violation doesn’t take place on K_2^0 because the 2π decay events are indeed originated from K_1^0 and K_2^0 is responsible for the 3π-decay events. The observations of the 2π-decay events in K2 indicate that it contains K_1^0 component. In our explanation, the experimentally observed particles shall be K_1^0 and K_2^0, not K1 and K2. As long as the K_1^0’s energy is large enough, it can move a very long distance before decay. This situation is like muon passing through a much long distance to reach the Earth and then take place decay. We also demonstrate a case that the survival probability of the K_1^0 meson traveling 57 feet is about 2.41x10^-3, close to the branching ratio about 2x10^-3 of the two-body decay of the neutral K2 meson exhibited in 1964 (Ref. 2). If so, the CP violation really doesn’t take place in the neutral Kaon decay. Besides, the estimations of the K_1^0’s and K_2^0’s average lifetimes have to include the data in 1964 which may lead to significant corrections.