Light guide, lighting device and vehicle

The light guide comprises a first guide part, a light emitting part and a first reflection part, the first guide part is formed on the side opposite to the side where the light emitting part is located, and the first guide part guides light rays from a light source towards the first reflection part and the light emitting part; the first reflecting part is formed between the first guide part and the light emitting part and reflects a part of light from the first guide part to the light emitting part; the light emitting part emits a first part of light directly from the first guide part and a second part of light from the first reflection part; and a first reflection enhancing structure is formed on the first reflection part so as to increase the light quantity of the second part of light. According to the utility model, the first reflection enhancing structure is formed on the first reflection part, so that an observer can observe a uniform light emitting effect at a plurality of positions where light from the