Breast　microcalcifications　are　one　of　the　important　imaging　features　of　early　breast　cancer　and　are　a　key　to　early　breast　cancer　diagnosis.　Ultrasound　imaging　has　been　widely　used　in　the　detection　and　diagnosis　of　breast　diseases　because　of　its　low　cost,　nonionizing　radiation,　and　real-time　capability.　However,　due　to　factors　such　as　limited　spatial　resolution　and　speckle　noise,　it　is　difficult　to　detect　breast　microcalcifications　using　conventional　B-mode　ultrasound　imaging.　Recent　studies　show　that　new　ultrasound　technologies　improved　the　visualization　of　microcalcifications　over　conventional　B-mode　ultrasound　imaging.　In　this　paper,　a　review　of　the　literature　on　the　ultrasonic　detection　methods　of　microcalcifications　was　conducted.　The　reviewed　methods　were　broadly　divided　into　high-frequency　B-mode　ultrasound　imaging　techniques,　B-mode　ultrasound　image　processing　techniques,　ultrasound　elastography　techniques,　time　reversal　techniques,　high　spatial　frequency　techniques,　second-order　ultrasound　field　imaging　techniques,　and　photoacoustic　imaging　techniques.　The　related　principles　and　research　status　of　these　methods　were　introduced,　and　the　characteristics　and　limitations　of　the　various　methods　were　discussed　and　analyzed.　Future　developments　of　ultrasonic　breast　microcalcification　detection　are　suggested.