Flexibility is a harmonious combination of speed, flexibility, strength, and the ability to coordinate movements in movement. This is an important element in physical education, helping to comprehensively develop students' physical strength. Flexibility has been integrated into the curriculum from elementary school to help students practice physical fitness and improve their movement skills from an early age. The article presents the current status of flexibility training for martial arts students aged 12-15 practicing at the Vovinam club at Hong Quang Primary School, Lien Chieu District, Da Nang City.Flexibility is a harmonious combination of speed, flexibility, strength, and the ability to coordinate movements in movement. This is an important element in physical education, helping to comprehensively develop students' physical strength. Flexibility has been integrated into the curriculum from elementary school to help students practice physical fitness and improve their movement skills from an early age. The article presents the current status of flexibility training for martial arts students aged 12-15 practicing at the Vovinam club at Hong Quang Primary School, Lien Chieu District, Da Nang City.