Aim: The present study aimed to examine the psychometric properties of the original 10-item version of the Fear of Missing Out scale (FoMOs) to validate it for use among Chinese adolescents and emerging adults. Method: A convenient sample of 2886 subjects (Mage =14.79, SD = 4.03; 47.96% male) was recruited in South China. Item analysis, EFA, CFA, testing of measurement invariance across gender and age, reliability analysis, and convergent validity analysis were conducted. A sample of 154 subjects (Mage = 15.3, SD = 2.22; 54% male) completed the scale again after 6 months to assess the test-retest reliability. Results: The EFA strongly indicated a two-dimensional solution for the Chinese version of the FoMOs, which the CFA confirmed. Adequate internal consistency was found. Convergent validity was also demonstrated. Conclusion: Based on the results, the Chinese version of the FoMOs is suitable for use among Chinese young people.