There is no such thing as 6-month baby development standard. 6-month baby development can be roughly analyzed from weight, height, movement and fine movement as follows: 1. Weight: generally male and female babies are different, male babies weigh around 6kg to 10kg, female babies weigh around 6kg to 9kg. 2. Height: generally male and female babies are different, male babies’ height is around 65cm to 71cm, female babies’ height is around 62cm to 71cm. 3. Motor: the child’s limbs are coordinated, can roll over, and can sit still. 4. Fine motor: the mouth can learn to murmur movements, shaking toys with their hands and so on. The development of a 6-month-old baby is multifaceted and will manifest itself in other ways besides the above. There is no absolute standard. However, if the baby’s development is significantly later than that of babies of the same age, it is recommended to consult a doctor in time.