The invention relates to a surgical smoke filter, and belongs to the field of medical equipment. The surgical smoke filter comprises a closed shell with an inlet and an outlet, wherein the inlet and the outlet are formed in two parallel opposite faces of the closed shell, the closed shell comprises a harmful gas filtering cavity and a carbon dioxide absorbing cavity in sequence from the inlet to the outlet, the outlet of the closed shell is covered with a first multi-hole plate, and the inlet and the outlet of the closed shell extend outward from the shell to form an air inlet tube and an air outlet tube respectively. The surgical smoke filter is compact in structure, convenient to use, easy to operate, economical, efficient and capable of effectively clearing away harmful particles and carbon dioxide in smoke generated in laparoscopic surgery at the same time, the harmful particles and the carbon dioxide in smoke are easy to recycle and destroy, and the surgical smoke filter meets the administrative regulation for disposable sterile medical apparatuses.