Abstract Guiyou No.1 is a new chieh-qua(Benincasa hispida coga. var. chieh-qua How.) variety with early maturity,high yield,good quality,resistance to some fungi diseases, selected from the F 1 which was bred by crossing Wuzhou chieh-qua and Nanning chieh-qua. Single plant of the variety has more fruits than that of other varieties. The yield is about 102-127.5t·hm -2.