Objective To examine trends and correlates of passive (inactive) commuting to school among Chinese children aged 6–18 years in nine provinces. Methods The trends analysis used school commuting data from the China Health and Nutrition Surveys in 1997 (n = 2454), 2000 (n = 1978), 2004 (n = 1549) and 2006 (n = 1236). Generalized estimating equations examined trends after adjusting for age, sex and region, and also explored the correlates of passive commuting to school in urban and rural areas (n = 6935). Results An increase in passive commuting to school was noted (3.6% in 1997, 14.1% in 2006, P < 0.0001). Children attending schools not located in their local community were more likely to passively commute. In urban areas, maternal education was associated with increased passive commuting (AOR = 1.41, 95% CI: 1.03–1.92). In rural areas, family income (AOR high/low = 2.12, 95% CI: 1.52–2.96), paternal education (AOR high/low = 1.56, 95%CI: 1.17–2.07), and motorcycle ownership (AOR = 1.57, 95%CI: 1.19–2.07) were associated with passive commuting. Conclusion Passive commuting to school increased in China over a decade and was associated with family socioeconomic status, school location, and in rural children, with access to motorized vehicles.