The invention relates to the technical field of
agricultural machinery, in particular to an agricultural planting fertilizing device which comprises a bottom frame, a drilling
machine mounted at the upper end of the bottom frame and capable of sliding in the height direction of the bottom frame in a guiding mode, and
water storage tanks mounted on the two sides of the bottom frame. The
water storage tanks are used for storing liquid
fertilizer, and the
piston rods are arranged at the ends, facing the
drill bits, of the
water storage tanks and move up and down in the height direction of the water storage tanks. A scraping block at the lower end of the ground drilling
machine is intermittently contacted with an abutting block when the ground drilling
machine starts to
drill holes, the ground drilling machine continuously moves downwards, a
piston rod continuously moves downwards by utilizing
friction force between the scraping block and the abutting block, and when the
piston rod moves downwards, a piston plate connected with the
piston rod can press the liquid level in a
water storage tank downwards, so that the liquid level in the
water storage tank is pressed downwards; and the water is sprayed on the two sides of the
drill bit through the water spraying
pipe, so that the ground soil is gradually fertilized while the ground is wetted.