This study was carried out to find effective and well functioning methodology to achieve the goal of floral decoration course as a social education at institutes of life long education, by assessing & analizing the result of question are investigation measuring the degree of participants' satisfaction about the course. we came to following conclusion by statistical analysis of the investigation. Firstly, as for composition, 91% of the participants were female, 55% were in their twenties and thirties, 48.5% were university students or graduated from universities. As for their occupations, the participants were composed of students(48%), house wives(27%) and office workers (17.6%) in order. Secondly, Even though 80% of the participants were satisfied with the contents and the methods of the course, various modalities of teaching were required because only 48% of the lectures were performed with us age of various educational modalities. Thirdly, the primary reason for choosing the institutes of lifelong education in the university was due to their expectation for qualified and variously talented instructor. Therefore, to commensurate with their expectation, the institutes and the instructors should develop good contents and good teaching skills utilizing various educational modalities. Fourthly, to manage highly qualified lecture and motivate active participation and effort to learn, proper test method to evaluate the participants' performance should be developed. As a conclusion, to meet with the demand of students and to accomplish the goal of the course, the institutes should provide with highly qualified and specialized course with good contents by qualified and talented instructors utilizing various educational media and proper test methods.