Abstract:‘Jinyou No.48’is a new cucumber F1 hybrid bred from crossing elite inbred line P-1 and D59-1-1. The plants has middle growth vigor. Its leaf is green. It bears fruits mainly in main stem with high fruit-setting rate. Its fruit is dark green in color, tender and crisp with good quality. The fruit is about 35 cm in length and the single fruit is about 230 g in weight. The fruit neck is less than 1/7 of the fruit length. The fruit cavity is below 1/2 fruit diameter. It is resistant to fusarium wilt, downy mildew, powdery mildew and CMV. It can yield 90 t?hm-2. It is suitable for open field cultivation in spring or plastic tunnel in fall.