本研究的目的爲：探討面對不同對手實力的撞球運動員在進入前八強前每一輪比賽其比賽前狀態性焦慮、比賽中狀態性焦慮的差異情形。以參加2008年美和休保杯撞球比賽的男子運動員爲研究對象。採用「運動前狀態性焦慮量表」及「運動中狀態性焦慮量表」爲研究工具。以SPSS13.0的統計軟體進行雙因子變異數的統計分析。結果發現：1.不同對手實力的撞球運動員在進入前八強前其比賽前及比賽中（總體、認知、自信心）狀態性焦慮差異均未達顯著水準。2.不同對手實力的撞球運動員在進入前八強前，評估對手實力高低時，在比賽中會對身體焦慮產生影響，面對實力強的對手會產生激勵作用。

The purpose of this study were: Probe into different strength of billiards athlete, they state anxious difference situations pre-competition, during-competition of every match before entering last eight. The subjects of participating were 8 billiards players joining 2008 meiho cup. This tool adopted of research was situational competition anxiety scale. With the statistical analysis that the statistics software of SPSS13.0 carries on two-way ANOVA. The results were as follows: 1. there were no significance for pre-competition, during-competition state anxiety (overall, cognitive, self-confidence) among the billiards athlete of different strength of length of playing before entering last eight. 2. The billiards athlete of different strength is before entering last eight, while assessing strength level, will be anxious to the health during- competition to exert an influence, will produce the function of encouraging in the face of the rival with strong strength.