For many urban families, the vacuum cleaner has become an essential small household appliance for cleaning the family. We can understand the development trend of today’s small household appliance product design through the research on the design concept of the current household vacuum cleaner. Nowadays, many vacuum cleaners are absolutely full of humanistic care in detail design. For example, there are now special water-absorbing vacuum cleaners, vacuum cleaners that emit fragrance while working; there are also vacuum cleaners that can wipe the floor while vacuuming, and micro-vacuum cleaners for cleaning and dusting surfaces such as computer keyboards and woolen clothing. From this we can see that the design of modern vacuum cleaners has gone beyond the functional requirements of the vacuum cleaner itself, but is trying its best to cater to consumers’ technological, cultural, physical and emotional feelings.

Household vacuum cleaners, as the main daily cleaning tool in today’s family, will form frequent interactions with users, and products and consumers will have a direct contact and communication. If the communication is not good, it will greatly reduce the satisfaction of consumers. In today’s society where information dissemination is more and more developed, but interpersonal relationships are getting weaker and weaker, the development of all products must be closer to people’s emotions and mentality, and it is even necessary to take how to penetrate into the depths of people’s hearts as the creative research and development point of products. Today, there is no such thing as a product that is purchased only considering its use without making a choice. The importance of the basic functional role of commodities is gradually decreasing, while the role played by non-basic functional factors is gradually increasing.
Product affinity design is mainly manifested in the affinity of product functionality and non-functionality. Designers should endow products with personality, emotion and life so that they can communicate with people. We can analyze the affinity design of modern household vacuum cleaners from three aspects: the shape, color and function of the vacuum cleaner.

1.shape – pull the heartstrings
Product shape design is the most important aspect of product design. The essence and characteristics of design must be clarified, concrete, and materialized through a certain shape. For small household appliances such as vacuum cleaners, all brands now attach great importance to appearance design, because appearance plays a big role when there is little difference in function. When it comes to housekeeping, everyone wants to be fun and relaxed.

2. Color—reflects human personality
   The personalized color of the vacuum cleaner is beneficial to adjust people’s mood, and can make users have a comfortable color experience in the process of doing housework. At present, the colors of vacuum cleaners and even household appliances have the following trends:
   （1）White series–eternal color
   For a long time, white has been the main color of home appliances. White gives people a clean, cool and neat association. And as the color with no color and the highest brightness, white home appliances make the family look brighter, the sense of space becomes larger, and it can be coordinated with any furniture, wall, and ground, which is an eternal theme.

（2）Color series–Colorful life
It is not difficult to find that young people in their twenties have grown up with the upsurge of individual liberation. At present, they have grown into a group of consumers with considerable purchasing power. Quick consciousness, strong sense of personal style, and pursuit of personalized design products are the distinctive features of this group of people. Well-known home appliance brands such as Dyson and Philips have launched a variety of colorful vacuum cleaners.

As far as the living standard of most of the society is concerned, it is gradually improved with the development of the overall productivity of the society. When the social and economic development is at a low level, people’s requirements for design objects are simple and practical, and there is no extravagance. And when the socioeconomic level reaches a certain level, consumers will have higher requirements for design objects—including more psychological, spiritual and cultural needs in addition to practicality. The purpose of design is to meet people’s own physical and psychological needs, and needs become the driving force behind human design. It is necessary to constantly generate and satisfy the content and methods that constantly push the design forward, influence and restrict the design.