Contraception is the information, devices, and medications that enable individuals to decide whether and when to have children. It is a cost-effective method of limiting and spacing childbirth. In Ethiopia, the prevalence of modern contraceptives is increasing, and injection contraceptives represent a high prevalence. However, it is unclear why the women preferred injection contraception. To explore Women's experiences on contraceptive preference among Jimma town public health facilities, southwest Ethiopia, 2023. An interpretative phenomenological study design was employed. Women aged between 18 and 49 who have been using injectable contraceptives for more than one year were our study population. Data were collected through in-depth interviews using an open-ended, structured interview guide. The purposive sampling technique was used to select 12 participants from three randomly selected public health facilities in Jimma town. Audio data were transcribed verbatim into word files, and finally, Atlas.ti 7.0 software was used to facilitate coding and categorizing. Twelve women who have been using injectable contraceptives for the last year were involved in this study. Religious beliefs, fear of side effects, visiting Arab countries, and previous contraceptive experiences were the main reasons for respondents to prefer injectable contraceptive methods. This study revealed that women were experiencing positive and negative effects while using injection contraceptives. The majority of the respondents felt comfortable and pleased and had not encountered any health-related issues since beginning to use injection contraceptives. The key factors influencing respondents' preference for injection methods of contraception included fear of side effects, religious convictions, travel to Arab nations, and prior contraceptive experiences. The majority of respondents felt at ease and pleased and reported no substantial health difficulties associated with injection contraception, despite a few women reporting minor adverse effects. Therefore, switching to long-acting methods of contraception necessitates increased women's understanding of contraceptives.