process were recorded and analyzed in the two groups after intervention. Then t-test and χ2 test wereused for statistical analysis. Results ① Basic situation: There was no significant difference betweenthe intervention group and the control group in terms of gestational age, gender, birthweight,ventilatoryassistedventilation, maternal diseases, prenatal hormone use and defecation frequency in the first week after
	
		birth (P>0.05). ② Feeding quality: On first day of the study, there was no statistically significant difference
	
	
		in abdominal circumference, vomiting frequency, gastric retention and body weight between the intervention
	
	
		group and the control group (P>0.05). On the 10th day of the study, the body weight and milk volume of the
	
	
		children in the intervention group were higher than those in the control group [body weight (1 775±401) and
	
	
		(1 563±336) g, milk volume (91±43) and (73±46) ml/(kg·d), P<0.05]; and the abdominal circumference
	
	
		and gastric retention of the intervention group were lower than those in the control group [abdominal
	
	
		circumference (23.7±2.1) and (24.6±2.2) cm, gastric retention (2.8±2.2) and (4.9±1.9) ml, P<0.05].
	
	
		③ Feeding process: The initial oral feeding time and tube feeding time of preterm infants in the intervention
	
	
		group were lower than those in the control group [initial oral feeding time (11.5±10.0) and (18.5±15.0) d,
	
	
		tube feeding time (18±15) and (26±17) d, P<0.05]. Conclusion Physical interventions such as colostrum
	
	
		immunotherapy, oral motor intervention and abdominal massage can improve the feeding quality, shorten the
	
	
		tube feeding time, promote the feeding process and improve the prognosis of premature infants.