The invention discloses a sun-proof and breathable cooling garment. The sun-proof and breathable cooling garment comprises a waistcoat body and a coat. The waistcoat body comprises a waterproof and breathable fabric layer, a water storage layer and a waterproof wind guiding fabric layer, wherein the waterproof and breathable fabric layer, the water storage layer and the waterproof wind guiding fabric layer are sequentially arranged from inside to outside; the water storage layer comprises a plurality of water storage strips, wind guiding channels are formed between the adjacent water storage strips, and the coat comprises a sun-proof and breathable layer. According to the sun-proof and breathable cooling garment, heat of the human body and heat of the periphery space are absorbed and transferred through water evaporation; the water storage layer is divided into the multiple water storage strips, the water amount is evenly distributed, the uniformity degree of cooling of the whole garment is increased, the using comfortable degree is increased, the circulation effect of air is improved through the breathable performance of the coat, and evaporation and heat absorption are quickened.