Abstract: In order to lay the foundation for the integrated control of goosegrass in the complex agricultural environment condition, this study clarifed the seeds germination characteristics of goosegrass and its key environmental impact factors by indoor tests. These laboratory experiments were conducted to examine the influence of environmental factors, including temperature, light, salinity-alkalinity, drought and pH, on germination of goosegrass seeds collected from Anyang, Yancheng and Sanya. The results of this research showed that the minimum germinating temperature was10℃,and the germinate rate reached to maximum when the temperature rised to 30~35℃. Seeds germinated at alternating temperature regimes from 20/10 to 40/30℃, with maximum germination at the alternating temperatures of 35/25℃. The effect of light on seed germination was consistant with the variable and constant temperature, and the results indicated that dark treatment was favorable for seed germination under low temperature(constant temperature≤25℃, variable temperature ≤25/15℃). The germination of the seeds was influenced by the water potential, and germination decreased the increase of water potential. germination was reduced by saline and alkaline stresses and no germination occurred at NaCl≥100 mmol/L or NaHCO3≥150 mmol/L concentrations. However, pH values from 5 to 10 had no significant effect on germination of goosegrass, and is not a main factor of limiting the seed germination of goosegrass.