OBJECTIVE: To investigate the value of ultrasonography in the diagnosis of gallbladder cancer in a community. METHODS: A total of 24 cases of gallbladder carcinoma confirmed by operation and pathology were retrospectively analyzed. RESULTS: There were 14 cases (14/24) of gallbladder cancer preoperatively diagnosed by normal scale ultrasound and 10 cases (10/24) of accidental gallbladder cancer diagnosed. The diagnostic sensitivity was 58.33%. Irregular thickening of gallbladder wall was found in the 14 cases of preoperative diagnosis of gallbladder carcinoma. There were 22 cases of gallbladder cancer complicated with gallstones (22/24) and 2 cases without gallstones (2/24), among which 18 were multiple gallstones and 4 cases (4/24) were single gallstone. Signal of blood flow can be detected in the lesion of gallbladder wall in 7 cases (7/14). CONCLUSION: The evaluation of the gallbladder in patients with high risk factors should be emphasized in community ultrasound examinations.