A valve structure may include a tube body, a front end of which has a water outlet end, and a water control valve is located near the water outlet end to control the amount of output water. A connecting base extends backwards from the water control valve, and a water inlet hole is formed between the connecting base and the water control valve, and a connecting tube connects to the water inlet hole. According to the structure described above, the valve can be installed at any position of the fixed surface through the connecting base, and the connecting tube can be coupled with the hose to connect to an existing water supplying end of the pipeline system, the user does not have to conduct a tedious and time-consuming pipeline-burying process, so people without any experience can also assemble the valve and adjust the position thereof by themselves.