Children within one year of age are mainly head lifting, sitting, crawling these three issues, as follows: 1, head lifting: due to the newborn, children’s neck muscles develop early, in four months, you can appear to lift the head; 2, sitting: five months can sit against the wall, six months can hold on to sit, seven months can sit alone, eleven months can hold on to the railing to stand; 3, crawling: children “crawl “The movement usually appears in seven to September, therefore, there is a folk proverb, for seven sitting eight climbing nine teeth, it is for this reason. Clinical observation of gross motor characteristics, mainly to determine the child’s basic development, as well as the development of the motor nervous system, but also need to be combined with other indicators.