AI Sign Language Avatar bridges the communication gap for the deaf community by instantly translating spoken content into fluent, natural sign language animations. Using AI to precisely estimate finger and pose skeletons, the technology generates smooth Full HD sign language videos that accurately capture hand gestures, facial expressions, and postures. Compared to existing technologies, it eliminates awkward transitions between signs and delivers more coherent translations to ensure clear communication. This innovation is currently being applied in weather broadcasts, traffic updates, disaster notifications, and exhibition tours. It can also be used in interactive customer service, helping businesses better serve the deaf community and promoting information accessibility and social inclusion.