Abstract：The sport-specific abilities indicators for basketball players, including power and agility, can be assessed by various methods. However, the relationships between different power and agility tests are not well understood. Therefore, the purposes of this study were to explore the relationships among general and specific power and agility tests, and the relationship between segmental limb length and power in adolescent basketball players. A total of 15 Division I female high school basketball players were recruited. Segmental limb length, standing reach height, counter movement jump, squat jump, standing long jump, lateral jump, step jump, 505 agility test, modified agility T-test and lane agility test were measured. Results showed that the step jump height was positively correlated with vertical jump height and hang time. No significant correlations were observed between the general and specific agility tests. Thigh length was negatively correlated with the height of counter movement jump and squat jump and average hang time. In conclusion, step jump was positively correlated with general power tests. Lateral jump was not correlated with other power tests due to the different primary muscle groups involved. Compared to general agility tests, the lane agility test may be more suitable for assessing agility for basketball players. In the future, when evaluating basketball players' sport-specific abilities, more specific tests can be selected to more accurately understand the players' status and avoid redundancy in testing. (Full text)