Oblique-toothed shark is an endangered species at present, so there is still a certain endangered threat, because people will use traps, gill nets and so on. To catch it, because its meat can be eaten, and its skin can be made into leather and even cartilage can be used as medicine, so it has very high economic value, and then its population will live in danger, and it still needs everyone's protection.

Oblique-toothed sharks are mostly viviparous, and one fetus can give birth to 1- 14 cubs. It is said that in the early pregnancy of female sharks, young sharks are connected with the placenta of female sharks to absorb nutrients. It is said that it takes one or two years for young sharks to mature sexually after birth, among which females can get pregnant when they grow to 24 cm, while females need to grow to more than 33 cm to reproduce.