Two studies were conducted to evaluate the structure and changes in the perceptions of student-teachers anxiety towards practice teaching. In Study I, 162 students rated the following: 49 items of anxiety scale towards practice teaching, self-efficacy measure (16 items) and social anxiety measure (14 items) for a verification of validity. A factor analysis of the anxiety scores of 49 items indicated four factors: teaching professionally, social interaction with pupils, personal appearance and physical condition. These factors significantly correlated with the self-efficacy and social anxiety measures. In Study II, 118 students rated twice the 49 items of anxiety in before-after their practice teaching. Analyses produced almost the same results as obtained in the first study. The four factor scores of anxiety decreased significantly after experiences in practice teaching.