Abstract: 【Objective】 Based on the serious problem of the occurrence and harm of Descurainia sophia in the wheat field in southern Xinjiang, the relationship between seed germination and temperature and salinity was studied in this experiment in the hope of providing a theoretical basis for the scientific control of Descurainia sophia in wheat field. 【Method】 The seeds of Descurainia sophia were treated with 10-30℃ temperature and stress ranging and 50-200 mmol/L NaCl to determined the germination potential, germination percentage, germination length, germination weight, germination index and vigor index. 【Result】 The seeds of Descurainia sophia could germinate between 10℃ and 25℃, and the optimum germination temperature was 20℃.The germination potential, germination percentage, germination length, germination weight, germination index and vigor index of Descurainia sophiawere the highest at 20℃, which were 81.50%, 84.00%, 12.00, 2.88 cm, 2.00 mg and 34.55, respectively.The seeds of Descurainia sophia could germinate at the concentration of NaCl between 50 mmol/L and 150 mmol/L, but could not germinate when the concentration exceeded 200 mmol/L.With the increase of NaCl concentration, the seed germination percentage of Descurainia sophia decreased gradually.When NaCl concentration was 150 mmol/L, the seed germination percentage was only 3.50%. 【Conclusion】 The optimum germination temperature of Descurainia sophia seeds is 20℃ and NaCl stress significantly can decrease the germination percentage, germination index and vigor index of Descurainia sophia seeds.