<p> Architects design buildings in consideration of constraints such as law, owner’s request, relationship with neighbors and their endurances. Compared with buildings, installations have less constraints and are characterized by space expression with high degree of freedom and carefully selected elements. Therefore, principles such as the features of the element and the mechanism of composition appear prominently on works. In this research, the objective is to reveal how architects perceives and realizes principles when architects perform creative activities by analyzing the text description on the installation works, which prominently expresses the principle caught by the architect.</p><p> The flow of this research is as below:</p><p> 1. Subject of this research is 931 samples from the text description on the installation works produced by architects that refer to original creation for a principle focused by the architect in architectural magazine “Shinkenchiku” and Italian architecture and design magazine “domus”.</p><p> 2. Extract the sentences that contain words: Medium of Principle, Disposition of Principle and Action of Principle. Medium of Principle is the word described as element having the principle focused on by the architect. Disposition of Principle is the word described as role and state inherent in the Medium of Principle. Action of Principle is the word described as motion and behavior of the Medium of Principle.</p><p> 3. Analyze and consider correspondence relationships between Medium of Principle and Disposition of Principle, and Medium of Principle and Action of Principle.</p><p> 4. Based on the tendencies of correspondence analysis, frameworks of semantic contents of the principles are derived. By using them to make a matrix to identify aspects of principle of creation and categorize them into types to provide insights and draw conclusions.</p><p> Through the investigation of the matrix between Medium of Principle, Disposition of Principle and Action of Principle, 24 typical aspects of principle of creation in text description on installations were derived.</p><p> From these, the architect set the purpose of the installations for the three stages of his own thought, creation of space and experience of space, and found the possibility of development of creation.</p><p> As a way of utilizing the principle, the architect finds the aspects of works by principle such as work by the principle itself and realization of latent principle. In addition, the architect finds aspects of the principle born by the works such as the principles born as a result and the principles through the construction process. The architect utilized the value of the found principle from these two aspects.</p><p> From the 24 typical aspects obtained, how the principles relate to architectural creation is examined. It reveals groups of semantic contents with the themes of unique concepts in architecture that could exist behind and around the 24 typical aspects. As a result, six themes as the principle of building creation were found; artificiality and nature, surrounding environment, existence of building, strength, construction, human emotions. Therefore, we can say that there exists the correlation between architectural thought and method to materialize the principle. This is thought to be an important guideline for future creative activities by architects.</p>