The utility model relates to the technical field of agricultural planting and
seedling raising, in particular to an indoor
seedling raising device for agricultural planting, which comprises a base. The water drainage
assembly is arranged at the rear end of the base and comprises a
water storage tank, a water inlet tank, an auxiliary frame, a sliding rod, a floating ball, a top plate, a button, a connecting plate, a water suction pump, a water drainage
pipe, a water drainage frame and a
handle; by arranging the drainage
assembly, when the
water level in the
water storage tank rises to a certain height, water flows into the auxiliary frame through the water inlet tank and pushes the floating ball to rise, and the floating ball drives the sliding rod to move in the auxiliary frame, so that the top plate triggers the button, the water suction pump is started to perform water suction operation within limited time, and the water is guided into the drainage frame through the drainage
pipe; during cleaning, the
handle can be pulled, the
handle drives the drainage frame to be pulled out, centralized drainage treatment is facilitated, automatic pumping drainage of redundant water can be achieved through the design, water accumulation is effectively prevented, and the drainage efficiency and
operation safety of the
seedling culture device are improved.