Background : Sewage workers face several occupational health hazards. Aim of the study: The aim of the study was assessing the occupational health hazards among sewage workers at Al- Qalyobia Governorate. Subjects& methods: Research design: Descriptive exploratory design was used. Setting: The study conducted in all pumping and treatment stations affiliated to Al-Qalyobia Drinking water and Sanitation Company. Subjects: Stratified sample was used and 140 workers were included. Tools of data collection: a structured interview questionnaire, Observation sheet & Laboratory investigations. Results: The study results revealed that more than three quarters of studied sample reported that they exposes to psycho social hazards followed by physical hazards. And the most health problems among studied sample were skin problems, musculoskeletal, runny nose and cough, diarrhea, abdominal colic`s, nausea, vomiting and headache. Positive correlation between satisfactory knowledge and age, educational level and duration of work. Conclusion: It was concluded that sewage workers exposes to high levels of occupational hazards, personal protective equipment was not regularly used by a considerable number of the participants, most of sample had unsatisfactory knowledge regarding safe procedures during work stages. Recommendations: Health education programs should be conducted for both the workers and the relevant authorities regarding occupational diseases and hazards and its prevention, workers should be provided with protective clothes and equipment and seek medical supervision, vaccination and basic hygiene precautions are important