Objective To investigate influence of Houpu Liqi decoction on gastrointestinal function and lung function after aged abdominal surgery. Methods 186 cases following aged abdominal operation were selected and divided into two groups randomly， treated Houpu Liqi Decoction and Mosapride respectively. Arterial blood gas analysis and FVC were measured on operation day and post-operation days1， 3. Enteric function recovery time was recorded. Results Enteric function recovered earlier in Chinese herbal group than in control significantly， so were lung function. meanwhile， Arterial blood gas analysis were better than those in control. Conclusion The study showed that Houpu Liqi decoction can promote gastrointestinal function and lung function recovery， diminish lung injury after abdominal surgery.