On earth in twenty-first Century will live to about eight billion people, and each person has genetic characteristics and cultural characteristics different from the others, each person has their own personality, social experience and cultural background, everyone wants their own personality, cultural characteristics and personality respect, therefore, the interaction and relationship between people people often because of their differences and leads to confusion, stress and conflict. At the same time, because of the scarcity of resources and limited, people have to face how to distribute or share the natural resources and public resources, and any options are actually reflects certain cultural values, therefore, human beings need to seek a new concept of culture, human and nature can not only make the harmonious development between man and man can the harmonious development. People need this new cultural concept; — — it is a harmonious culture that respects and contains unlimited cultural diversity, and encourages cultural creation and bloom. Only such a culture concept will fully respect human nature, diversity and individuality, without prejudice, and advocating peace, harmony, harmony of cultural concept to deal with all kinds of human relations, can cross-cultural and cross-border traffic and the world. The formation of the new ideology of cultural ideas, new, will inevitably lead to the change of design ideas and form our will, resulting in a new concept of harmonious design, harmonious design integration of ecological design and humanized design, innovative design, localization design, emotional design and other advanced design concept, the the significance of the business in the design of products, should be based on the concept of harmony as the product design guidelines and the highest goal, and to adhere to the idea of coordination of people and products of harmony in the process of product design, the relationship between products and products and products and the environment of the large system in balance, coordination, matching each other. In order to ensure many relatively independent factors to realizing the unity of opposites in the process of movement, and is contradictory and even conflict factors of complementary harmony, create conforms to the background of the times, to meet people's spiritual world and the material world coordinate products. First of all, this paper expounds the theory of harmony in detail on the basis of a large number of references at home and abroad. This paper summarizes the new meaning of the harmonious theory under the new era background, and then summarizes the concept, characteristics and principles of the harmonious design with the related theory of the product design, and establishes the design procedure of the harmonious design initially. Secondly, through the investigation and analysis of the current situation of China's residential kitchen environment and kitchen appliances, find the problems, put forward the feasibility of harmonious design of kitchen appliances, kitchen appliances and then summarizes the harmonious trend and design method. Finally, the harmonious design concept and kitchen appliances design combined, summed up the kitchen appliances design principles of harmony.