This study aimed to identify the relationship between Metacognitive thinking and tactical performance of fencing players. The researchers employed a descriptive method by using survey method in a sample of (29) fencers chosen according to the selectively intended and classified method from high standard players who participated in Egypt Cup 1 for epee public stage during the 2017/2018 season. (7) For survey, (22) for basic study. The basic sample was comprised of (12) males and (10) females, the researchers used the Arabic version of Metacognitive thinking scale presented by Jarrah and Obaidat (2011), which consists of (3) component (regulation of cognition, knowledge about cognition and knowledge processing), the most important results was that male and female fencers achieved a high level in Metacognitive thinking and its component (Regulation of cognition, Cognition processing), while they achieved a moderate level in (Knowledge about cognition), there are no statistically significant differences between male and female fencers in Metacognitive thinking and Tactical performance, the correlation coefficient is a statistically significant between the offensive tactical performance and the (Regulation of cognition, Cognition processing, the total degree of Metacognitive thinking), the Defensive tactical performance and the (Knowledge about cognition, the total degree of Metacognitive thinking), the overall degree of Tactical performance and all components of Metacognitive thinking.