Seeding device and seeder

The invention relates to the field of agricultural seeding machines, in particular to a seeding device and a seeder adopting the seeding device. The seeding device comprises a plurality of inter-cut transfer mechanisms in the discrete state, a transfer driving mechanism and an inter-cut execution mechanism, wherein the inter-cut transfer mechanisms are installed on a guide rail rack provided witha guide rail and matched with the guide rail, the transfer driving mechanism drives the inter-cut transfer mechanism to move along the guide rail, and the inter-cut execution mechanism is installed onthe guide rail rack and matched with the inter-cut transfer mechanism to release plant crops at the set positions. The inter-cut transfer mechanisms are discretely installed on the guide rail of theguide rail rack, and the problem of mutual interference is solved; due to changes of the motion speed of the inter-cut transfer mechanisms on the guide rail, feeding and discharging at the static state relative to the guide rail rack can be achieved, at the static state relative to the ground, seeds are sown into soil, the structure is compact, universality is good, and the seeding device is particularly suitable for interplanting and transplanting of narrow-ridge crops, and seeding of no-tillage fields or hills containing gravel.