Cucumber TSS No. 3 is a F1 hybrid. The plant has moderate vigor. Each main vine node bears 1 to 2 female flowers, and the days from sowing to harvesting are about 35 to 38 days. The Parthenocarpy is high, the fruit color is green, the fruit length is about 20~26 cm, and the fruit weight is about 126 grams. The plant is a gynoecious cucumber variety with great heat tolerance. High fruit setting rate can be achieved during hot summer. This variety may contribute to the resilience of agricultural sector. TSS No. 3 growers may conserve energy consumption, reduce carbon emission, and create eco-friendly production system by adopting optimized fertilization technologies and integrated pest management.