Post-surgical abdominal pain is a combination of several sensory experience, emotional and unpleasant mental resulting from surgical trauma. Although the pain has been well managed, approximately 86% of patients experience mild to severe pain of post surgical although analgesic has been improved. This study aims at describing the characteristics of respondents (exploratory study) and explaining the factors which influence the patient's pain intensity of post-surgical abdominal (explanatory study). The design of this study was descriptive analytical with cross sectional approach on 71 post-surgical abdominal respondents. This study used State Anxiety Inventory (S-AI) Form Y instrument to assess the patient's anxiety of post-surgical abdominal, attitude and belief toward pain, and the pain scale for assessing the pain intensity of post surgery using a combination of Visual Analog Scale (VAS) and Numeric Rating Scale (NRS). The results of this study showed that the factors which influence the pain intensity of o post-surgical abdominal significantly were age (p = 0,017), gender (p = 0,004), spiritual (p = 0.0005), patient's attitude and belief toward pain (p = 0.0005), and the level of anxiety (0.0005). The factors which most affect the intensity of post-surgical abdominal pain was the level of anxiety (component coefficient B 0,573). The results of this study is useful for nursing practitioners as a reference in conducting the management of post-surgical abdominal pain to considerate some factors of age, sex, spiritual, patient's attitude and belief toward pain, and the level of anxiety. The recommendations of this study need further studies with the larger sample numbers and other factors which could affect the pain.