A latch structure prevents separation of first and second bodies of an electronic device which might otherwise occur as a result of a fall, requires little force to operate, and serves to switch a coupling status of the first and second bodies of the electronic device. The first body has a receiving unit and a coupling unit. The second body has an L-shaped groove. A base of the latch structure has a casing slidable in the receiving unit and a resilient element for providing a resilient restoring force. The casing has a protruding member for coupling with the L-shaped groove. A resilient coupling unit of the latch structure is disposed on the base and configured to engage the coupling unit.