PROBLEM TO BE SOLVED: To provide a dental polymerizable composition having moderate curing time and excellent curability and storage stability and allowing low leachability of an organic substance after curing.SOLUTION: A dental polymerizable composition contains a (meth)acrylic polymerizable monomer (a), a peroxide as an oxidizing agent for a redox polymerization initiator (b), a triazine thiol (thione) derivative as a reducing agent for a redox polymerization initiator (c), and a transition metal compound (d).