Abstract:Ftype wheat male sterile line is a new “three lines” with karyoplasm interaction.For study the pollen characteristics of Ftype sterile line and screening its restorers and maintainers,the I2 KI staining method is used to observe pollens of F,BNS,T,K and Vtype wheat male sterile lines at blooming stage,and using 98 hybrid combinations that Ftype sterile line was female and 98 quality wheat lines were male to detect the self seedset ratios on F1 of combinations.Results showed that:(1) pollen sterility rate of Ftype sterile line reached 95.63% including the highest 67.66% stained aborted rate,19.32% spherical aborted rate and only 8.73% typical aborted.(2) The pollen sterility characteristics of Ftype was most similar to Ktype,the second was Vtype in 5 kinds of sterile lines.(3) In 98 hybridized combinations,11 selfseedset ratios (international) were more than 100% and 18 at 0%-10%.(4)‘Zhoumai16’,M510,‘Xinong 815’ and ‘Xinong 585’ were excellent restorer lines to Ftype sterile line.‘Tianmai 989’,‘Cunmai 4’,CY5475,M460,‘12 Luo1’ and 11GB02 were good maintainers for Ftype sterile line by backcross cultivation.Research suggests that Ftype male sterile line has thorough and stable pollen abortion and easily sought its maintainer resources and excellent restorers on fertility.