Vertical seedling raising device for rape and seedling raising method of rape

The invention discloses a vertical seedling raising device for rape and a seedling raising method of the rape, and relates to the technical field of rape seedling raising. The device comprises a waterstorage tank; the water storage tank has a box body structure; a water pump is arranged in the water storage tank; a water inlet pipe is fixed at the input end of the water pump; a first support column and a second support column are respectively arranged at two ends of the water storage tank; the first support column has a tube body structure; the water inlet pipe is installed in the first support column; a plurality of seedling raising boxes are arranged between the first support column and the second support column; a plurality of distributed water pipes are arranged in the seedling boxes;and a water conveying pipe is arranged at the bottom of the water storage tank. According to the device provided by the invention, with the stacking arrangement of the seedling raising boxes, the seedling raising space is sav