We reported a case of rheumatoid subacromial bursitis containing considerable rice bodies. A sixty-year-old woman was diagnosed as rheumatoid arthritis (RA) eight years ago. She complained of pain and swelling in her left shoulder for five years. On examination, remarkable swelling was observed on the anterior and posterior parts of the shoulder. T2-weighted MRI demonstrated multiple nodules with low intensity in effusion of the subacromial bursa (SAB). Gadolinium-enhanced MRI showed high intensity border of SAB and no enhanced nodular lesion. The SAB was resected surgically. More than one thousand rice bodies were found in the resected SAB. No bacterial infection including tubercle bacillus was found. Pathological diagnosis was chronic inflammation caused by RA. The postoperative course was uneventful.