Vocational undergraduate education has a clear vocational education attribute, carrying the heavy burden of delivering excellent vocational talents to society. Psychological health education in vocational undergraduate colleges must deepen positive educational concepts, stimulate students’ potential, cultivate positive and upward psychological qualities, and effectively achieve a balanced education. At present, research on the positive psychological qualities of vocational colleges’ undergraduate students is mostly at the theoretical level, with little empirical or practical research. This article mainly focuses on the first to fourth-year students of a vocational undergraduate college in Jinan City, analyzes the current status of their positive psychological qualities, and reveals the influence of demographic variables on the positive psychological qualities of vocational undergraduate students. The study proposes targeted new paths to enhance the positive psychological qualities of vocational undergraduate students, further enriching empirical research on the cultivation of positive psychological qualities.