B222　on　planting　and　breeding　of　seedling　production　line　is　the　use　of　mechanized　assembly　line　of　flowers　and　vegetables　from　sowing　to　harvest　the　entire　process　of　production　by　mechanical　replacement　of　manual　work.　Base　nursery　is　the　core　of　the　entire　assembly　line,　our　country　on　the　seedling　matrix　block　formation　automation　equipment　is　in　its　infancy,　but　also　can　not　design　and　manufacture　of　mature　block　formation　automation　equipment.　According　to　the　research　and　analysis,　the　prototype　formation　equipment＇s　process　is　divided　into　mixed　soil　matrix,　soil　matrix　transport,　with　taking　innovative　design,　the　three　process　are　integrated　together　to　achieve　fully　automated　production　equipment,　and　further　research　on　key　mould　pressing　devices.　Solidworks　is　used　to　design　the　press　moulding.　EDEM　software　is　used　to　simulate　the　process　of　pressing　matrix,　the　establishment　of　the　contact　model　is　the　basis　of　the　numerical　simulation　of　the　granular　material,　select　the　ECM　particle　model,　through　the　analysis　of　the　simulation　data,　it　is　found　that　with　the　increase　of　depressurization　velocity　at　a　certain　speed　range　of　0.04　m/s-0.08　m/s　at　other　parameters,　the　number　of　inter-granular　surface　contacts　decreases　and　the　cohesion　decreases.　The　equpment　used　PLC　adopts　technology,　sensor　technology,　electromagnetic　valve　and　other　control　techniques,　it　is　possible　to　achieve　intelligent　pressing　of　the　matrix　block.　©　2018　IEEE.