Disclosed is a method for eliminating linear edge defects of hot-rolled low-carbon steel. The method is characterized by comprising following technological processes: step one, heating continuous casting billet; step two, descaling with high-pressure water; step three, using a sizing press for width adjustment; step four, roughly rolling; step five, preserving heat with a thermal insulation cover; step six, heating edges; step seven, cutting heads and tails with a flying shear; step eight, performing finish rolling for descaling; step nine, performing finish rolling; step ten, performing laminar cooling; and step eleven, reeling. The method is further characterized in that a place equal to the continuous casting billet in size is reserved between the continuous casting billet and a furnace outlet when heating the continuous-cast billet at the step one is performed. According to the method for eliminating the linear edge defects of the hot-rolled low-carbon steel, the linear edge defects of the hot-roller low-carbon steel can be eliminated only by adjusting process parameters while modification of production line equipment is not needed, and coexistence region rolling is avoided, so that mixed grain of hot-rolled strip steel is avoided.