Objective To explore the impact of family income on health-seeking delay, diagnosis delay and treatment delay. Method There were 192 participants from 3 counties in Zhenjiang, which were selected by stratified random sampling method. A questionnaires survey was carried out in this study. Results The mean of health-seeking delay, diagnosis delay and treatment delay was 15.92days, 13.97 days and 1.27 days. The mean of family per-capita income was 14983.26 Yuan. There were no statistically significant differences in unacceptable health-seeking delay and treatment delay among different family income groups. But a statistically significant difference was found in the level of medical institution initially visited among patients with different family per-capita income and different medical institution caused different unacceptable health-seeking delay. Conclusion Family income was not the main reason of health-seeking delay and treatment delay for newly smear positive tuberculosis patients in Zhenjiang. But family income still had effect on diagnosis delay by choosing different medical institution initially visited.