Cucumber grafting seedling raising method

The invention discloses a cucumber grafting seedling raising method. The cucumber grafting seedling raising method comprises the following steps: by taking cucumber seeds as scion seeds and pumpkin seeds as rootstock seeds, performing accelerating germination of the pumpkin seeds, after sprouting, sowing the pumpkin seeds into a plug tray filled with a matrix, and sowing one pumpkin seed in each hole; performing sowing of cucumber seeds 5-7 days after sowing the pumpkins; during grafting, adopting an oblique cutting method, removing growing points and true leaves of pumpkin seedlings, whereina grafting needle is used for piercing from the joint of cotyledon and plumular axis on one side of the pumpkin seedlings, the angle between the grafting needle and the hypocotyledonary axis is 30-45degrees, and the outer wall of the hypocotyledonary axis is pierced by the end of the grafting needle; taking a whole cucumber seedling, obliquely cutting the hypocotyledonary axis of the cucumber seedling once by using a blad