Swimming goggles include two clamp frames, two frame bodies, two lenses respectively received in the receiving slots of the frame bodies, pressing devices for pressing the first arm and the second arm to close, and a head strap. Each clamp frame defines a passageway, and has an assembling portion on an inward side thereof. A first arm and a second arm respectively extend from the clamp frame and opposite to the assembling portion. A slit is defined between joint surfaces of the first arm and the second arm and is located adjacent a user's temple when being worn. A stem extends from an end of the first arm/the second arm. An engaging portion is formed at an end of the stem. The frame bodies are respectively assembled on the passageways of the clamp frames. A receiving slot is defined in an inner surface of each frame body.