Objective To investigate the status and its correlation of knowledge,attitude,and behaviors related to Alzheimer's disease among community residents in Tianjin.Methods Convenience sampling method was used to select 140 rural residents aged 20～75 years old in Wang-ding-di community,then using a researcher-designed questionnaire to conduct knowledge,attitude,and behaviors survey.Results The knowledge score was(6.436±2.170)(0～16)points,and the correct rate of first symptom of Alzheimer's disease among people of different age,education level had statistical differences.Community residents held a positive attitude to patients with Alzheimer's disease,113 community residents felt Alzheimer's disease patients pitiful and lonely.Getting health knowledge about Alzheimer's disease among people of different gender,education level,monthly family income,presence or absence of chronic diseases had statistical differences.There were positive relationships between knowledge and behaviors scores,memory and knowledge scores,getting health knowledge about dementia and knowledge scores.Conclusions Community residents has low cognitive levels about Alzheimer's disease,and they don't take the appropriate health behavior,so the government should develop the health education about Alzheimer's disease in the community to prevent the disease.