Domestic waste is gradually becoming one of the sources of severe environmental pollution. Phan Dinh Phung ward is one of the central wards of Thai Nguyen city, with a dense population, so the amount of domestic waste in the ward is large. This study was conducted to assess the current status of domestic waste classification at the source to have a basis for proposing practical solutions to improve the efficiency of domestic waste management in Phan Dinh Phung ward. The methods used in this study include document analysis and synthesis, sociological investigation, and data processing. Research results show that: Phan Dinh Phung ward (Thai Nguyen city) has been classifying domestic waste at sources since 2018. Currently, 100% of households and business households in the ward do this. Segregation of domestic waste at sources; 98.7% of households put garbage in the right place; 89% of households know how to sort garbage; 57% of households carry out the classification of household waste. The proportion of households doing the correct classification is 45%. However, the number of households using garbage sorting tools distributed for the proper purposes and dumping the garbage on time is still low. For the waste separation at the source in Phan Dinh Phung ward to be more effective and to attract the participation of the people, it is necessary to perform synchronously from waste classification at the source to the collection. Transportation and treatment in the following directions: Sorting at the right source, collecting correctly, treating effectively, and conducting propaganda more often to the people.