Objective: The objective of this study is to examine the personality characteristics of bipolar patients by using Projective Personality Test; Rorschach Inkblot Test, Thematic Apperception Test (T.A.T.), House-Tree-Person Test (H.T.P.), and Sentence Completion Test (S.C.T).

Material and Method: This study used purposive sampling to select 11 bipolar patients. Inclusion criteria were age above 20-45 years and patient willing to participate in an interview using four types of test. The data were collected from March to May, 2013. Quality data were summarized by percentage and frequency. Moreover, results were interpreted in separate domains, namely personality trait, emotion, thought, and interrelationship including defense mechanism.

Results: In this study, patient samples were more female than male. Most patients were 20-29 years old. Patients suffer from depression and 8 of the 11 patients wanted to commit suicide. The results from personality traits showed that patients were immature, dependent, unstable, depressant, anxious, stressful, and lacking in confidence to make a decision. Moreover, patients had different thoughts on the same issue. (There were emotions about anxious, depression, negative and positive thinking and good interrelationships). That is to say, patients initially had negative thinking but later turned to positive thinking called “Ambivalence.” This behavior is consistent with a defense mechanisms (compensation); patients will substitute their negative or unsolved thought with positive thought.

Conclusion: Finally, the results from four types of testing show consistency in the same way. Patients had different thoughts on the same issue.