Mozambique has used surveys extensively to evaluate its Diarrhoeal Diseases Control programme; topics have included diarrhoea morbidity and mortality, health centre management and home follow-up, diarrhoea prevalence and dehydration, and household knowledge. The surveys found high diarrhoeaassociated morbidity and mortality ratas. Although knowledge rates about oral rehydration salts (ORS) were between 88% and 93%, problems in the programme included poor distribution of ORS packets, varying availability of sugar and salt, inadequate case management, and poor effective use in the home. Policy and strategy were revised accordingly to improve health worker training and to increase use of alternative home solutions. We make recommendations for future surveys based on the revised programme: a change from large surveys measuring mortality to small local surveys of health centre management with home follow-UD to measure effective use. with indicators on knowledge included in routine Expended Programme on immunization coverage surveys.