The present application relates to a method for detecting spinal deformity using three-dimensional ultrasound imaging. A method for detecting spinal deformity using three-dimensional ultrasound imaging, wherein, comprising the following steps: S1. obtaining a three-dimensional image of a spine by a three-dimensional ultrasound imaging system； S2. obtaining axial rotation information of the spine through the three-dimensional image of the spine； S3. using the axial rotation information of the spine to adjust the three-dimensional image of the spine； S4. projecting the adjusted three-dimensional image of the spine after image on a coronal and / or sagittal plane to obtain a projection of the coronal and / or sagittal plane； S5. calculating the spinal deformity data by the projection of the coronal or sagittal plane. In the invention, the three-dimensional image is obtained through three-dimensional ultrasound imaging system； the rotation of vertebral body of three-dimensional image is obtained by analyzing rotation information and image information of each two-dimensional ultrasound image； and the rotation center of each two-dimensional image is estimated through spine statistical information. This method can more accurately measure the deformity angle of spine in each plane.
