Fluid control device and gas-filling system

The utility model relates to a fluid control device. The fluid control device comprises a valve body, a filter, an electromagnetic valve, a one-way valve and an indicator, wherein the filter is connected with the outlet of an air inlet valve; the electromagnetic valve is connected with the outlet of the filter; the one-way valve is connected with the outlet of the electromagnetic valve; the indicator is connected with the filter in parallel. The functions of the air inlet valve, the filter, the indictor, the electromagnetic valve and the one-way valve are integrated on the valve body, and the valve body with the functions of the air inlet valve, the filter, the indicator, the electromagnetic valve and the one-way valve can be mounted as an integral component. According to the fluid control device, the functions of the air inlet valve, the filter, the indicator, the electromagnetic valve and the one-way valve are directly integrated on the valve body, the air inlet valve, the filter, the indicator, the electromagnetic valve and the one-way valve are connected without pipe joints, and the fluid control device is simple in structure and low in cost.