Thermotropic Liquid Crystalline Polymer(TLCP) has been known to show typically non-Newtonian shear thinning behaviour in molten state. In this study, the effect on fiber structure development of the Hydroxybenzoic Acid (HBA) and 2,6 Hydroxynaphthoic acid (HNA) TLCP according to the variation of spinning conditions (shear rate @spinneret and spinning draft) in melt-spinning Process was investigated. HBA/HNA TLCP Resin was supplied from Seyang Polymer Corporation in Korea. The TLCP resin was melted using single screw type extruder (Ø25, L/D 30) and extruded from spinneret by gear pump. Spinning temperature was controlled at 290℃, and various as-spun fibers could be prepared by changing the throughput rate (0.6-2.4g/min/hole) and the spinning speed (500-2,400mpm). The calculated shear rate in the capillary of spinneret and spinning draft were 20,000-85,000s-1, and 10-20, respectively. The analyses of mechanical properties and structure of the fiber were conducted using by tensile test machine, SEM, DSC and 2D-WAXD. The tensile strength and structure development of the fibers showed a tendency to increase with shear rate and draft. As a result, this study indicated that the mechanical and structural properties of TLCP Fibers were relatively more influenced than those of conventional thermoplastic fibers by the spinning conditions, such as shear rate and draft in the melt spinning process.