Objective To understand the implementation of sodium-restricted diet among patients with Chronic Heart Failure（CHF）, and to analyze its influencing factors. Methods Totally 182 inpatients with CHF were investigated using the Chinese version of the Dietary Sodium Restriction Questionnaire （DSRQ）. Results A total of 173（95.05%） patients had a sodium-restricted diet prescription , while only 23（12.64%） patients were guided by medical staff on specific salt intake （5-6 g/d）; 17（9.83%） patients always complied with the regulations strictly, 89（51.45%） patients strictly followed most of the time; 86（49.71%） patients thought it was very easy or easy to comply with the required low-salt diet; 48（27.75%） patients thought complying with the low-salt diet was very helpful for managing the heart condition.In the DSRQ, the score of the attitude dimension was 3.90±0.52, subjective norm was 4.43±0.55, and perceived behavioral control was 3.01±1.13. The result of one-way analysis of variance showed that, there was significant differences in the score of attitude dimension among the patients with different educational backgrounds （P＜0.05） and the score of perceived behavioral control dimension between patients with different genders （P＜0.01）. Conclusion The implementation of sodium-restricted diet among patients with CHF is poor, especially in the perceived behavioral control. Medical staff should pay attention to the evaluation and intervention of the factors impeding the implementation of sodium-restricted diet in patients with CHF, so as to enhance patients′ compliance on sodium-restricted diet.