This paper observed and counted the main technical indicators of Korean table tennis athlete AN Jaehyun in the three games of the 2019 World Table Tennis Championships by using the literature method, video statistics method, four-stage index evaluation method and other research methods. According to the research, AN Jaehyun mainly uses high toss service and reverse pendulum service, and the placement is concentrated on the opponent's near-net center forehand, his service scoring ability is strong, he has a strong scoring ability in the third board and achieves an excellent level; the usage rate of attack after receive in the service round is high but it is unstable. In attack after receive, AN Jaehyun has a lot of methods to receive and serve the ball, he can score directly by drop shot, causes the opponent to make a mistake or create attack opportunities for his fourth board, which has a certain threat. However, his judgment for ball landing point and spin judgment is not accurate enough, and lose points more; uses the backhand to return backhand ball better in the fourth board, and the effect of using the forehand to return the ball is poor sideways. The usage rate of the attack after receive in the receive is evaluated as medium. In the stalemate stage, AN Jaehyun has a low usage rate in the first stalemate stage, active stalemate scoring ability is strong, and his counter-attack ability is poor; the usage rate is unstable in the second stalemate stage. A Jaehyun has the highest contribution rate in the attack after serve, contribution rate is the lowest in the second stalemate stage. It shows that AN Jaehyun's attack after serve is the main scoring method of the game, and his stalemate ability is weak. Table tennis is a dominant event for the Chinese Olympic Games to win gold. China has long been in a dominant position in the international table tennis. At the table tennis arena of 2020 Tokyo Olympic Games, the Chinese table tennis team will accept the challenges of outstanding table tennis players from other countries again. As can be seen from the men's singles competition in the 2109 World Table Tennis Championships, South Korean table tennis athlete AN Jaehyun overcame all the difficulties in the way and entered into the men's single semi-final, he has become a potential opponent of the Chinese table tennis team in Tokyo Olympic Games. By looking at the database of academic journals such as CNKI, Wanfang, and Weipu, there are few studies on South Korean athlete AN Jaehyun. This paper intends to use the "table tennis four-stage index evaluation method", 1: "contribution rate", 2: counts the main technologies of AN Jaehyun, analyzes his tactical characteristics, and provides data support and theoretical reference for the 2020 Tokyo Olympic Games.

Jun He. 2019 World Table Tennis Championships (AN Jaehyun) Statistical Analysis of Four Technical Indicators. Academic Journal of Humanities & Social Sciences (2019) Vol. 2, Issue 3: 116-122. https://doi.org/10.25236/AJHSS.040080.

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