Most of our current economic, social and political problems are inherent in change. For example. many problems of education can no longer be confined to the classroom. People now live by new residental patterns. with rising educational levels, changing value systems, and higher levels of living. Emerging from these shifts are new problems that stimulate demand for changes in the role of the museum and gallery, where acknowledged as a public educational agency. Increasingly, therefore. the element of change must be recognised. understood, accepted and given directions. For progress requires changes. but all change does not result in progress. Progress, for example. takes into account the use of new approaches and techniques as opposed to former traditional patterns. In this sense change can be beneficial. for progress is not made by doing more of the same in the same way. but by making desirable changes in present patterns of behaviour. For example. new survey techniques may be utilized to test audience reaction to exhibitions in museums. As it was mentioned earlier, the educational role of museums. in formal sense, is now firmly established, and it is their broader function. as purveyors of community education. that is currently under debate all over the world including Korea. In this point of view. an accurate observation on the effort to change and develop of the role of museums in education in museums in other countries would give good ideas and would be guide to the right way. As many countries in Europe, Britain give many effort to develop the educational role and function of museum and as the result. museums in Britain have been reconstructed and reforrned since early 1900s. This paper shows that rnuseurn reconstruction and reforrn in Britain in educational role in three periods. in part decided by two world wars frorn the first developrnental phase which cornrnended in the rnid-nineteenth century. up to the outbreak of the First World War. A second period is the one covering the inter-war years. and the third. frorn 1945. continues to the present day.