An ultrasonic probe is provided with which work for exchanging a cable is reduced, and more preferably, an ultrasonic probe is provided with which the exchange of a cable is easy even for a doctor or the like. This ultrasonic probe 1 is provided with an ultrasonic probe body A and a cable B connected to the ultrasonic probe body A and connectable in a removable manner to an external apparatus. The ultrasonic probe body A is provided with: a sensor part 20 that emits ultrasonic signals and receives reflection waves of the ultrasonic signals; a signal conversion part 30 that is connected to the sensor part 20, and that converts the analog reflection wave signals sent by the sensor part 20 into digital signals; and an image processing part 40 that is connected to the signal conversion part 30, and that performs processing on the basis of the digital signals sent by the signal conversion part 30, until the creation of an echo image.本發明係提供一種超音波探針,該超音波探針係減輕電纜之更換的人力與時間的超音波探針,更佳係即使是醫生等亦可簡單地更換電纜。本發明之超音波探針1係包括:超音波探針本體A;及電纜B,係與超音波探針本體A連接,並可拆裝地可與外部機器連接;超音波探針本體A係包括:感測器部20,係進行超音波信號之發射及超音波信號之反射波的接收;信號變換部30,係與感測器部20連接,並將從感測器部20所傳送之類比之反射波的信號變換成數位信號;以及影像處理部40,係與信號變換部30連接,並根據從信號變換部30所傳送之數位信號,進行至回波影像之製作的處理。