It doesn't need a long hand to play the pipa. In fact, there is no direct relationship between pipa playing skills and hand length.

Pipa is a plucked instrument, and its playing skills mainly depend on the flexibility and strength of fingers. Although hand length may provide some advantages for pipa performance, such as being able to press some strings more easily, this is not the decisive factor.

Therefore, if you are interested in playing the pipa, you don't have to worry too much about the size of your hands. It is important to cultivate correct playing posture and skills, and keep practicing to improve the flexibility and strength of fingers.