The utility model relates to a cambered and microporous heat conduction flat tube, wherein both the upper and the lower surfaces of the flat tube are designed into sawtooth shape, and a microporous tube (1) with a rhombic cross section is arranged in the tube. A clapboard (2) is arranged in the microporous tube (1) to divide the microporous tube (1) into two parts along the longitudinal direction. The cambered and microporous heat conduction flat tube provided by the utility model can greatly increase the surface area of the cambered and microporous heat conduction flat tube, the heat absorption and radiating action areas of the flat tube are increased, so the heat conduction is faster, and the heat exchange efficiency is high. The cambered and microporous heat conduction flat tube solves the problems that the upper and the lower surfaces of the existing heat tube are designed into planes, so the heat conduction area is limited, and the heat conduction rate is lower.