Before revision:  We  hope this dataset can help researchers around the world better understand the spread dynamics of COVID-19 at a regional level, to inform intervention and mitigation strategies for policymakers.
After revision:  We cross validate the dataset and the estimate error rate is about 0.04\%. We then give several examples to show how to trace the spreading in particular cities or provinces, and also contrast the development of COVID-19 in all cities in China at the early, middle and late stages. We hope this dataset can help researchers around the world better understand the spread dynamics of COVID-19 at a regional level, to inform intervention and mitigation strategies for policymakers.