Facial palsy is a condition where patients lack voluntary movement on one side of the face and cannot convey emotions, often leading to social isolation. This study evaluates facial muscle function before and after facial reanimation using temporalis muscle galea pedicled flap with motion mode echomyography in patients with long-standing facial paralysis. Ten patients (six with LMN palsy, four with specific peripheral branch weakness) underwent surgery and were followed postoperatively for 1–2 years. Subjective grading (excellent, good, fair, poor) and objective M-mode echomyography results were statistically analyzed. In LMN palsy patients, significant improvement was observed in orbicularis oculi, levator labii superioris, and orbicularis oris. This study demonstrates the versatility of temporalis muscle galea pedicled flap in long-standing facial paralysis. © 2020 Elsevier B.V., All rights reserved.