Why don't water drops break when they drop on ginkgo leaves?

Many leaves with waxy surfaces have this feature, and then many leaves let water droplets form beads on the surface, and the principle is different.

Since you are asking about Ginkgo biloba leaves, I can simply tell you that the surface of Ginkgo biloba leaves is rich in wax, which is a hydrophobic substance, so water drops naturally become beads due to surface tension.