The purpose of this research is to investigate the comparisons among the number of attacks, the score-achieving, and the attack movements. By understanding the attack strategies which were used by karate players in contest, coaches and trainers can take those attack strategies as reference resources. All data were analyzed and quantized after watching competition films. The attacking rate, the scoring rate and the succeeding rate in each either active or passive competition were described in integration. The results are as below : 1. Gyasku-tsuki appeared frequently in all attack movements. It showed the importance of Gyasku-tsuki in contest. 2. Among all the single attacks, Gyasku-tsuki was highest used to achieve scoring in every way. It showed that Gyasku-tsuki was the most effective movement which was used a lot by a large number of players to achieve scoring. 3. Gyasku-tsuki was used most frequently in both active continuous attacks and in passive continuous attacks. It was also used along with other movements to achieve scoring. 4. Active attacks were superior to passive attacks. It showed that active attacks were chosen to use by most players.