The invention discloses a method for removing magnesium and fluorine in a zinc hydrometallurgy zinc-contained solution. The method for removing the magnesium and the fluorine in the zinc hydrometallurgy zinc-contained solution comprises the following steps of A conducting zinc precipitation for fluorine removal, wherein zinc in the zinc hydrometallurgy zinc-contained solution is made to settle with a neutralizer, and neutralization slag and a zinc precipitation solution are obtained after filtering; B removing magnesium, wherein alkali is added to the zinc precipitation solution obtained in the step A, so that the magnesium is precipitated, after filtering, filter liquor and magnesium hydroxide sediment are obtained, and the filter liquor returns to a zinc hydrometallurgy system. The method for removing the magnesium and the fluorine in the zinc hydrometallurgy zinc-contained solution utilizes the difference between the chemical properties of the zinc and the magnesium, the zinc and the magnesium are separated by adjusting the pH value, the neutralization slag containing zinc and the magnesium hydroxide product are obtained, most of fluorine can enter the neutralization slag in thezinc precipitation process, the neutralization slag also can take away most of water, and volume balance of the zinc system is facilitated.