A fuel filter device is disclosed. The fuel filter device has a first member that includes a main body tubular portion and a first connection tubular portion for connecting the first member to a fuel pipe. The main body tubular portion includes a flow channel cross-section greater than that of the first connection tubular portion. The main body tubular portion includes a first end portion and a second end portion. The first connection tubular portion is disposed on the first end portion. An opening is provided through the second end portion. A filter element portion is accommodated in the main body tubular portion. A second member includes a lid portion and a second connection tubular portion for connecting the second member to a fuel pipe. The lid portion covers the opening of the main body tubular portion.