Dragon fruit quick seedling nursing method

The invention discloses a dragon fruit quick seedling nursing method. Quick seedling nursing method comprises the following steps of 1) preparing cuttage, 2) cutting and promoting roots, and 3) nursing matrix. In the first step, dragon fruit branches with pure breed, healthy growth and without insect diseases and being ephemeral and fully matured are selected for cuttages, then immersed and disinfected via liquid medicine and dried until wounds completely heal; in the second step, base parts of cuttages achieved in the first step are winded via sponge strips, and then inserted into seedling insert holes on a seedling nursing plate; the seedling nursing plate is placed on a rack over a water collection tank; nutrient solution is sprayed; and the cuttages are transplanted outside a shed after growing roots; in the third step, cuttages achieved via root germination in the second step are transplanted to matrix outside the shed, and can be taken out of the nursery after the cuttage grow new buds and gets matured.