The invention relates to the technical field of planting, and discloses a chilli seeding device. The chilli seeding device includes a rack, wherein the rack is successively provided with a soil collecting box, a soil screening box, a soil guiding trough and a seeding box from top to bottom, a hollow soil shoveling plate communicates with the soil collecting box, one end of the soil screening box is hinged to the rack, the other end of the soil collecting box is slidingly connected onto the rack, a first spring is connected between the soil screening box and the rack, the rack is provided witha negative pressure mechanism and a driving mechanism, the soil screening box is provided with a soil leaking hole, a soil covering plate is connected onto the soil guiding trough, a first wedge plateis slidingly connected onto the rack, a second spring is connected between the first wedge plate and the rack, the first wedge plate is provided with a soil releasing hole, a second wedge plate is slidingly connected onto the rack, the second wedge plate is provided with a seeding hole, a third spring is connected between the second wedge plate and the rack, one end of the first wedge plate abutsagainst the soil collecting box, and the other end of the first wedge plate abuts against the second wedge plate. The chilli seeding device solves the problem that the chilli seeding efficiency is low, and soil covering can not be conducted in time, which causes the poor chilli growth in the prior art.