Nowadays, most of the domestic solid waste (DSW) discharged by humans in urban areas has been collected, but some DSW is still leaked and discharged into the environment. Therefore, assessing the amount and composition of waste leaked into the environment is necessary in the context of increasing environmental concerns. The study applied the survey and data analysis method to assess the amount and composition of waste leaked in Phu Nhuan district, Ho Chi Minh City. The research results recorded: On land with 35 survey locations with a total survey area of 2,600 m2, 1,849 pieces of garbage were collected, an average of 0.71 pieces/m2. For garbage, fragments accounted for 54%, intact garbage accounted for 46%. Plastic waste is the most commonly found material, accounting for 49% of fragmented waste and 22% of intact waste. Of these, waste in size number 3 (from 2cm x 2cm, smaller than 4cm x 4cm) was found the most, accounting for 47%. The total number of garbage audited on the river was 2,161 pieces of garbage, of which 2,083 were fragmented and 78 were intact. 100% of intact garbage was plastic, while 95% of fragmented garbage was plastic. The most garbage found on the river was styrofoam food containers, accounting for 27%, followed by plastic bags, accounting for 26%, and food labels, accounting for 17%. The research results showed that plastic waste is currently the component with the highest proportion in surveys on land or garbage collected on the river. From there, the research team proposed a number of measures to limit garbage and plastic waste from leaking into the environment.