Disclosed herein is a locking apparatus of a swing hinge module for mobile communication terminals that is capable of improving a locking force of the swing hinge module, the mobile communication terminal including first and second housings rotatably connected to each other by the swing hinge module. The swing hinge module includes a locking apparatus having a hinge cap extending in the longitudinal direction thereof and having a closed end formed such that a head of the hinge shaft is inserted through the closed end of the hinge cap and an open end formed such that the hinge cap is attached to the hinge housing while the hinge cap surrounds the outer circumference of the hinge housing through the open end of the hinge cap, and a hinge fixing plate engaged with the head of the hinge shaft while opposite to the hinge cap such that the hinge housing and the hinge cap are fixed to each other by means of the hinge fixing plate while being rotated relative to the hinge fixing plate.