This study investigate the critical influence of wire feeding angle on the stability of droplet transition and process consistency in wire-laser additive manufacturing (WLAM). By employing a comprehensive fluid dynamics model, researchers analyzed the evolution of liquid bridge morphology and molten pool behavior across a range of wire feeding angles (25° to 65°). The findings reveal that increasing the wire feeding angle triggers a transition from a stable state, dominated by surface tension (at 25° and 45°), to an unstable state governed by inertia and gravity (at 65°). This instability is primarily caused by a mismatch between the melting rate and the wire feeding rate due to weakened heat transfer at larger angles. The study provides a theoretical framework for optimizing process parameters to ensure high fatigue performance and forming quality in complex geometric components for aerospace and automotive industries.