The utility model provides a valve action alarming device and a valve. The valve comprises a handle and a valve body. The valve action alarming device is characterized by comprising a power source, a trigger part, a sensing switch and an audible and visual alarm; the power source is in electric connection with the audible and visual alarm, the sensing switch is in serial connection between the power source and the audible and visual alarm, and the trigger part is in sensing connection with the sensing switch; the trigger part is arranged on the lower surface of the handle, the sensing switch is arranged on the upper surface of the valve body and right below the trigger part, and the audible and visual alarm is arranged on the surface of the valve body. When the handle is opened or closed, the trigger part on the lower surface of the handle triggers the sensing switch to work, so that a serial connection closed circuit is formed by the power source, the sensing switch and the audible and visual alarm, the audible and visual alarm located on the surface of the valve body is driven to give out sound and a flash caution to prompt an operator to take corresponding control measures, and the use safety of the valve is enhanced.