The invention relates to a hot rolling production process of an
aluminum foil for an
electrolytic capacitor. According to the hot rolling production process for the
aluminum foil for the electrolyticcapacitor, a single-
machine frame four-roll reversible hot-rolling unit is adopted to carry out hot rolling on a
thick plate ingot, and the plate
ingot biting speed, the rolling method and the speed and the bending roll control are controlled, wherein during the initial rolling stage, the plate
ingot biting speed is 60 m / min; during rolling, the heavy
reduction rate is adopted, and the single passreduction rate reaches 50%-70%; and the
rolling speed during rolling is 60-120 m / min. The bending roll control during rolling is characterized in that when the hot rolling
machining deformation rateis 0-90%, balanced rolling is adopted by a bending roll; when the hot rolling
machining deformation rate is 90%-95%, the bending roll is rolled by adopting the negative bending of 10%-20%; and when the hot rolling
processing deformation rate is 95%-97%, the bending roll is rolled by adopting the negative bending of 20%-30%, and when the hot rolling
machining deformation rate is 97% or above, the bending roll is rolled by adopting the negative bending of 30%-50%. According to the hot rolling production process of the
aluminum foil for the
electrolytic capacitor, stable production of the
thick plate ingot is realized by adopting the single-
machine frame four-roll reversible hot rolling unit.