Background: Women who are pregnant experience warning signs and symptoms known as danger clinical features. Aim: To assess knowledge and attitude of pregnant women regarding danger clinical features of pregnancy. Design of the research: the research was conducted using descriptive research design. Setting: The research was carried out at Minia maternity and children university hospital, Minia governorate, Egypt. Subjects: A representative sample from the total number of pregnant women who visit Antenatal care clinics in maternity and children university hospital monthly which constituted (306) case. Tool: Tool I: A structured interview questionnaire (Socio Demographic Data), Tool II: Structured questionnaire on women's knowledge regarding danger clinical features of pregnancy, Tool III: Structured questionnaire on women's attitude toward danger clinical features during pregnancy (Likert scale). Results: pregnant women had low level of knowledge regarding danger clinical features with (56.5%). The highest percentage regarding pregnant women knowledge about danger clinical features was for items “sudden gush of fluid before labor, loss of fetal movement, vaginal bleeding, oliguria/anuria, premature onset of contraction & severe headache" with ( 62.7%, 42.5%, 40.5%, 38.6%, 34.6%, &32.7% consequently). Pregnant women had positive attitude toward danger clinical features with (89.5%). Conclusion: There was highly statistical significant relationship between pregnant women's knowledge level and their attitude toward danger clinical features of pregnancy. Recommendations:  Establishing antenatal programs to educate all expectant mothers about the clinical dangers of pregnancy and when it is best to see a doctor.