This paper presents an extended version of a short report on the holographic interpretation of entanglement entropy in conformal field theories (CFTs) using the AdS/CFT correspondence. It reviews recent progress in entanglement entropy and includes new results, such as a more direct derivation of the relation between entanglement entropy and minimal area surfaces in the AdS₃/CFT₂ case, and further discussions on higher-dimensional cases. The paper also examines the relation between entanglement entropy and central charges in 4D CFTs, showing that the logarithmic part of the 4D entanglement entropy computed in the CFT side agrees with the AdS₅ result under specific conditions. It estimates the entanglement entropy of massive theories in generic dimensions using the proposed holographic method. The paper discusses the entanglement entropy in 2D CFTs, higher-dimensional CFTs, and its holographic interpretation. It provides detailed derivations of entanglement entropy in various cases, including 2D CFTs, higher-dimensional CFTs, and massive theories. The paper also explores the connection between entanglement entropy and central charges in 4D CFTs, showing that the entanglement entropy is proportional to the central charges. The paper concludes with a summary of results and future directions.This paper presents an extended version of a short report on the holographic interpretation of entanglement entropy in conformal field theories (CFTs) using the AdS/CFT correspondence. It reviews recent progress in entanglement entropy and includes new results, such as a more direct derivation of the relation between entanglement entropy and minimal area surfaces in the AdS₃/CFT₂ case, and further discussions on higher-dimensional cases. The paper also examines the relation between entanglement entropy and central charges in 4D CFTs, showing that the logarithmic part of the 4D entanglement entropy computed in the CFT side agrees with the AdS₅ result under specific conditions. It estimates the entanglement entropy of massive theories in generic dimensions using the proposed holographic method. The paper discusses the entanglement entropy in 2D CFTs, higher-dimensional CFTs, and its holographic interpretation. It provides detailed derivations of entanglement entropy in various cases, including 2D CFTs, higher-dimensional CFTs, and massive theories. The paper also explores the connection between entanglement entropy and central charges in 4D CFTs, showing that the entanglement entropy is proportional to the central charges. The paper concludes with a summary of results and future directions.