The purpose of the present invention is to provide a lid with a filter which filters solid objects, such as tea leaves, mixed into the beverages so that pure beverage can be drunk, and a filter therefore. A lid with a filter 10 to cap a cup 11 comprises a small hole 13 being made at a part 18 of a ceiling board and a liquid permeable filter component 14 which is made differently from the ceiling board is attached on the above small hole 13. In the preferred embodiment, the filter component is a coil spring 14 having hooking parts 20,21 on the both ends thereof. The filtered liquid can be drunk by filtering the substances (such as tea-leaves and herbs) inside of the cup 11 through this filter component or the coil spring 14.