The invention provides an ultrasound oral cavity imaging apparatus, comprising a chin support, a plurality of U-shaped ultrasonic detectors, and an ultrasonic inspection instrument. The chin support is provided with a bracket. The U-shaped ultrasonic detector includes a plurality of probes integrated as a U-shape array. The ultrasonic inspection instrument is connected to the plurality of U-shaped ultrasonic detectors and generates an oral 3D image according to a signal from by the U-shaped ultrasonic detectors.本發明係提供一種超音波口腔造影設備,包括一下巴支撐托架、複數個U型超音波檢測器、以及一超音波檢查儀。該下巴支撐托架上係設置有托槽。該複數個U型超音波檢測器分別包括複數個超音波探頭以陣列形式排成U形。該超音波檢查儀連接至該複數個U型超音波檢測器,該超音波檢查儀係依據由該U型超音波檢測器接收到訊號生成一口腔立體影像。