The realization of function is always the primary motive of designers, and they do their best to design the function of a new product. However, with the raise of modern design concept, more and more attention is transferred to the harmoniousness of the product. Besides function, human factor in design is highly emphasized. The connotation of humanized design is firstly introduced in this paper. Then, Factors of humanized design are discussed, including need, ergonomics, reliability and aesthetics. Especially, the importance is pointed that form design meeting the people’s aesthetic requirements based on psychological feelings. Taking electronic products as example, the method of humanized design is wisely analyzed from the aspects of form application, symbolistic application and intention transmission, which is helpful for designing products more pleasant and comfortable to use.