Objective To investigate the decisional conflict among pregnant women considering amniocentesis and to provide reference for targeted intervention. Methods A phenomenological research design was used. Semi-structured interview was conducted among 15 pregnant women who had a prenatal diagnosis of fetuses with abnormalities at 12-32 weeks′ gestation and scheduled for amniocentesis. Data were analyzed using Colaizzi′s 7-step method. Results Three themes were extracted from the interviews:dilemmas of decision content (deficiency of decision knowledge and conflicting information), dilemmas of decision support, and dilemmas of decision time. Conclusion Pregnant women considering amniocentesis experience multiple decision dilemmas, which are influenced by a variety of factors. Medical staff should pay attention to and take targeted measures to mitigate their decisional conflict.