<p>Children with Autism Spectrum Disorder (ASD) often experience motor difficulties, low levels of physical activity, and social challenges. Despite growing interest in motor interventions, evidence regarding their feasibility and effectiveness for children with ASD in China remains limited. Therefore, this pilot feasibility study used a single-group pre-post design to examine a 3-week intensive multi-sport motor intervention (15 sessions). Eighteen children with ASD (9.50 ± 2.70 years) participated in this program. Preliminary effectiveness outcomes included fundamental motor skills (TGMD-3), perceived motor competence (PMSC-parent), physical activity (C-PAQ), and emotional regulation and social skills (ERSSQ). Feasibility outcomes included attendance, session intensity, social validity, implementation fidelity, maintenance, and enjoyment. Descriptive statistics and paired t-tests with effect sizes were used as exploratory analyses. Recruitment and retention rates were high, and all children attended more than 80% of the sessions. Accelerometer data indicated that a substantial proportion of in-session time was spent at moderate-to-vigorous intensity. Parents reported high satisfaction with program goals, procedures, and perceived benefits. The intervention showed promising improvements in fundamental motor skills (especially locomotor skills), weekday MVPA, and emotional regulation and social skills. Changes in perceived motor competence and weekend MVPA were limited. This pilot feasibility study suggests that a structured motor intervention for children with ASD is feasible and acceptable in the Chinese context and may have beneficial effects on motor and social behaviors. These findings provide preliminary evidence to inform the design of larger, controlled trials.</p>