The purpose of this study was to investigate the conceptive elements of the toys designing on the characteristics of physical and mental development of infant children. Furthermore the research focus on the analysis of the timing of the infant children' toys, the cognition of educational functions of the infant children' toys, and adaptability of the infant children' toys by care-givers. The data were analyzed with SPSS. The findings were as follows: 1. Most of care-givers agree that planning the playing toys' time on everyday schedule, toys is long-term requirement for infant children, as well as the infant children choose the toys. 2. the care-givers who have undergraduate degree offer more playing toys' time to the infant children than the ones who graduate from college, also the care-givers who graduate from high school argue that the toys is long-term necessity for infant children more than the ones who graduate from college. 3. All care-givers consent that the toys of the infant children have fairly benefits to the infant children on their physical movements, lingual abilities, cognitive abilities, social abilities, creative abilities, and sense perceptions. Besides, the toys can cultivate the good manners of the infant children; they also have great value of entertainment. 4. The care-givers conceive the good toys should possess certain qualifications, the former six elements in sequence as follows: (1) safety (2) advancing resource (3) inspiring creativity (4) conforming to children' interests (6) permanence and wear. 5. The care-givers think that there were some circumstances should pay attentions when purchase the infant children' toys, the former six conditions in sequence as follows: (1) safe (2) nimble (3) could cohere with the infant children' interests (5) could answer to ages (5) could cleanse frequently (6) endurable. 6. The care-givers hold the former five most suitable toys of the infant children respectively were (1) built-up block (2) LEGO associate toys (3) jigsaw puzzle (4) snowflake piece (5) role play toys. Moreover, the care-givers consider the former five most unsuitable toys of the infant children respectively were (1) weaponry (including guns, swords, knives, and incisive stuff) (2) downy dolls (3) marbles (4) electric toys (5) associate robots. 7. The care-givers argue the former six toys that the most bring about the infant children's interests according to the statistics respectively were (1) block (2) role play toys (3) jigsaw puzzle (4) snowflake piece (5) LEGO (6) clay. 8. generalization the findings of this study were: both the conceptive elements of the toys designing and purchasing the infant children's toys not only t6ake into account the characteristics of physical and mental development of infant children; whether the toys possess the functions to illuminate children' creativity, advancing resource, and safety but also give a thought to the material of the toys whether they could wee washed frequently, endurable, suitable size, fixed, and quality of things.