Heat dissipation fin and heat dissipation module

The invention provides a heat dissipation fin and a heat dissipation module. The heat dissipation fin comprises a body and a flow guide structure. The body is provided with a first surface and a second surface which are opposite, and an airflow hole penetrating through the first surface and the second surface. The flow guide structure is obliquely arranged on the first face of the body, the flow guide structure is obliquely connected to the first face of the body in a lap joint mode and covers part of the airflow holes, an airflow channel is formed between the flow guide structure and the first face, part of airflow is suitable for flowing away through the airflow channel along the first face, and part of airflow flows away through the airflow holes from the direction of the second face. 本发明提出一种散热鳍片及散热模块。散热鳍片包括一本体及一导流结构。本体具有相对的一第一面、一第二面及贯穿第一面与第二面的一气流孔。导流结构倾斜地设置于本体的第一面上，导流结构倾斜地搭接于本体的第一面上且覆盖部分的气流孔，导流结构与第一面之间具有一气流通道，其中部分气流适于沿着第一面通过气流通道流去，而部分气流自第二面方向通过气流孔流去。