There are some problems that often appear in the designing of the automatic firefighting sprinkler systems, such as how to determine the sequence of the water pump adapters and the alarm valves, the sharing of the same firefighting pumps by the sprinkler systems and the hydrant systems and the problem of whether automatic sprinkler systems should be installed for the bicycle parks of highrise buildings and for the front rooms of Grade Ⅰ highrise commercial and resident buildings. However, these problems are not definitely specified in the design standards. Therefore, it is necessary to expound and probe into these problems.