A questionnaire about malaria knowledge, beliefs and practices was given to a random sample of 2168 married women from rural and urban areas of Sistan va Baluchestan, Islamic Republic of Iran. The mean knowledge score of subjects was low at 5.5 (maximum 15.0). Few respondents (37.6%) knew that malaria was an important disease in the area and only 58.4% knew that malaria was transmitted by mosquitoes. Most subjects (69.4%) never used a mosquito net. Only 49.9% of rural and 73.8% of urban residents would seek care for fever and chills from the local health centre. Community health workers (behvarz) were the main source of information (29.5%) for rural women; the role of physicians in education was minimal. Subsequent health education must be tailored to the educational needs of the target population in this area.