An orthodontic space closure device is provided, including a first tooth capunit, a second tooth cap unit, and a number of elastic members. The firsttooth capunit is configured to be removably worn on the anterior teeth of a dental archof apatient. At least one first connector is fixed on each buccal side of thefirst tooth capunit. The second tooth cap unit is configured to be removably worn on theposteriorteeth of the dental arch. A vertical extension part is formed on each buccalside of thesecond tooth cap unit, and at least one second connector is fixed on eachverticalextension part. The elastic members couple the first connectors to the secondconnectors, thereby exerting elastic traction forces having horizontal andverticalcomponents on the first tooth cap unit to achieve retraction and intrusion oftheanterior teeth.
