Abstract: Heilongjiang Province has a large area of soda saline-alkali land.In order to excavate saline-alkali resistant rice germplasm resources in Heilongjiang Province,provide intermediate materials for breeding saline-alkali resistant rice varieties and optimize saline-alkali resistant rice screening methods,118germplasm resources of high-generation rice and 6rice varieties mainly cultivated in Heilongjiang Province were used as materials.A saline-alkali tolerance screening test was carried out in the newly reclaimed paddy field in Zhaoyuan County,Heilongjiang Province,and tiller number and harvested grain number of rice were investigated.The results showed that nine new saline-alkali tolerant rice germplasm resources were screened out,which developed well in vegetative growth stage and had strong saline-alkali tolerance in reproductive growth stage.These results indicate that tillering capacity during the vegetative growth stage of rice can be used as the identification and screening index when identifying and screening saltine-alkali tolerant rice germplasm resources,which can improve the efficiency and accuracy of saline-alkali tolerant rice screening.