The tendency of emotional expression refers to the individual's stylistic features in emotional expression (e. g., intensity, latency, duration) and is considered an important dimension of temperament. Earlier theorists assumed the existence of a uniformity in these tendencies within the same individual across different emotions. However, recent research questioned this uniformity. This research was designed to explore the relations among these tendencies in the expressions of fear, anger, and pleasure in infants. Fifty 19-20 month-old children were observed in seven episodes of Laboratory Temperament Assessment Battery to assess their emotional expression tendencies. A temperament questionnaire was also completed by both parents of the subjects respectively. The results were as follows: (1) almost all indices relating to the facial and vocal expressions were intercorrelated within-, but not across-, emotion; (2) the relation among composite scores of each episode was similar, but the scores of two episodes of fear were uncorrelated; (3) composite scores for different emotions were uncorrelated. These results suggest that different emotions have different expressional tendencies.