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In order to explore the effect of water saving irrigation pattern on water distribution and lodging resistance of rice plants, a test was carried out in Qing’an County, Heilongjiang Province from May to October 2017. Three treatments were set: drip irrigation dry direct seeding (DH), flood irrigation in dry land (MH) and conventional basin irrigation (CK). The results showed that the moisture content of the total wet base of crown and leaf, sheath and stem treated by DH and MH was lower than that of CK at full growth stage, but the moisture content of root wet base was higher than that of CK at the end of tillering stage. The moisture content of different internodes (W), internode length (L) and plant height in the stems of milk ripening and yellow ripening stage were the lowest in DH, and the CK treatment was the highest, but the unit internode weight (Uw) of stem was the largest in DH, and the CK treatment was the smallest. Compared with CK, DH significantly improved the flexural force (F), broken bending moment (Bm) and bending stress (Bs) of rice stem, and reduced the bending moment (Wp), crosssection modulus (Z) and lodging index (Li), indicating that the drought resistance of rice was significantly improved by drip irrigation and dry direct seeding. The correlation between different parameters showed that L, W, Wp, Z and Li showed significant positive correlation (P<0.01), while Uw, F, Bm, Bs and Lishowed significant negative correlation (P<0.05), and the moisture content of the wet base of rice stems had significantly positive correlation, indicating that the water content of stems could be used to characterize and predict the lodging index of rice. The research results can provide new methods and ways to solve the problems of rice lodging and low water efficiency in the black soil area of Northeast China. It was of great significance to ensure the grain yield and the sustainable utilization of agricultural water resources in the black soil area of Northeast China.