Dysphagia is a common problem after stroke.Patients after stroke with swallow problem will have a nasogastric tube to be feeded. In this study , investigators have including and excluding criteria. Continous feeding group and intermittent feeding group had been widely used in enteral nutrition feeding in investigators' institution. Investigators will observe participants' nutrition condition and tube-feeding related complications. In continous group patients, participants usually are given prescribed enteral nutrient solution using nutrition pump in 24 hours; while in intermittent feeding group, participants will be given prescribed enteral nutrient solution in 4-5 times by special syringe. During the whole process, investigators will observe all participants' nutrition condition (body mass index, plasma albumin and calf girth) and tube-feeding related complications( regurgitation, aspiration,gastric retention, diarrhea,constipation). With all those data, the investigators will assess which feeding type is better.

Inclusion Criteria:

• Older than 65 years old
• Clinical diagnosis of stroke( ischemic and hemorrhage)
• With moderate and/or sever swallow problem(water swallow test IV-V degree)
• With nasogastric feeding tube more than 4 weeks
• Do rehabilitation in our hospital or designated hospitals

Exclusion Criteria:

• Without nasogastric feeding tube
• Patients with fever and other infection
• Chronic or acute anoxia
• Poor obedience
• Quit treatment or go back home to take rehabilitation
• Critically ill or died

Every 50 patients in each group