The invention provides a production method of a stable enhanced type solid wood profile improved by a wood carbonization and acetylation process, which belongs woodwork production technique. The production method comprises the following steps of: a, drying treatment, wherein the wood moisture content is reduced to be as low as 5.0 to 8.0 percent, the moisture content deviation in the wood thickness is less than 2.0 percent, and the wood internal residual stress is less than 2.0 percent; b, carbonizing treatment; c, acetylation treatment; and d, equalization treatment. The invention also discloses a stable enhanced type solid wood profile prepared by the production method. The solid wood profile prepared by the method is stable, has high corrosion resistance and weathering resistance, high output, long product service life and wide utilization ways, is favorable for realizing flow line production, and is convenient for industrialization.