To know of the sensitivity of morphological characteristics of rice on water-logging stress, the submersed experiments with different depth and duration using rice variety of Xiangzaoxian 45 were designed during the key growth stages of tillering, jointing, heading and milky stage. The morphological characteristics impacted by water-logging stress, such as stems, leaves et al., were analyzed with mathematical statistics methods. The results showed that the number of green leave at the milky stage was reduced the most with two-thirds flood submergence in 0 day, on the contrast, it did not obviously decrease with full flood at tillering stage; while, it was reduced more obviously with treatment of two-thirds flood than that of with full flood at all growth stages; The number of green leave became great difference after two days submergence at all stages. It appeared to be a trait of tillering at higher nodal position at all stages except for at milky stage under submergence, and this trait exhibited even more obviously at jointing stage, followed by at heading stage. The tillering rate with full flood treatment was higher than that of with two-thirds flood. Root lodging was mainly occurred at milky stage, while, root lodging, stalk lodging and rhizomes lodging coexisted at the other three stages after three days’ water-logging. Aerial roots appeared only at heading stage, leaf-roll, while, occurred at tillering and jointing stages. The longer the time of flooding duration, the longer of leaf sheath would grow at tillering and jointing stages. Keywords: rice; submersed stress; number of green leaves; higher nodal position tillering; stem increase; the lodging of root and stem; the length of leaf sheath