Control method for oxygen content during production process for copper rod

The invention discloses a control method for an oxygen content during a production process for a copper rod. The control method comprises the following steps: copper rod raw materials enter a vertical furnace and is melted to obtain molten copper, and the molten copper enters a heat-insulation furnace through a vertical furnace outlet and an upper runner and is subjected to heat insulation; a temperature difference between the vertical furnace and the heat-insulation furnace is controlled to be less than 5 DEG C; the molten copper is prepared for casting from the heat-insulation furnace through a lower runner, and air-fuel ratios of burners of the upper runner and the lower runner are adjusted to be between 0.95 to 1.08; the oxygen content in the molten copper at the vertical furnace outlet is 70-90ppm; if the oxygen content exceeds standards, dry wood is added in the heat-insulation furnace before pouring is started to reduce the oxygen content in the case that the air-fuel ratio of each burner of the upper