The purpose of this study was to determine and compare the physical fitness levels of youth with ID, VI, and HI. A total of 132 children and adolescents with ID, VI, and HI were recruited from five local special schools and participated in this study. To evaluate aerobic capacity, body composition, muscular strength, and flexibility of participants, the field test items such as 1-mile run/walk, BMI, grip strength, and back-saver sit & reach were selected and administered. A series of descriptive statistics and One-Way ANOVA was used for the data analyzes. Results showed that youth with ID and VI had lower levels of aerobic capacity than those of their peers with HI, regardless of gender. For muscular strength, it was found that youth with ID was inferior to their peers with VI and HI, regardless of gender. Results also revealed that youth with ID had lower levels of flexibility than their peers with VI and HI. The rationales of such the results and potential problems in research methods are further discussed.