Objective To investigate the gastric smooth muscle tumor in the stomach filling under Ultrasound imaging characteristics. Methods 38 cases confirmed by pathology in the stomach filling leiomyoma Ultrasound image data of the Ultrasound were retrospectively analyzed. Results Characterized by; submucosal circular, round,solid,hypoechoic,clear boundary,echo uniform tumor;a few blood flow within tumor,was particularly prevalent in the fundus,body;Size 0.5～5.0 cm,clear boundaries with the surrounding tissue. Filling the stomach Ultrasound technology to the diagnosis of gastric lipoma in line with the rate of 85. 2%. Conclusion Leiomyoma of the stomach in the stomach filling with characteristic under Ultrasound,stomach filling Ultrasound diagnosis of gastric smooth muscle tumors have a certain value.