The invention discloses an electronic detection device, which comprises an FPGA chip, a display module, an interface module, a storage module, a key module, an alarm module, a probe, a filter and an ultrasonic generation circuit, wherein the FPGA chip is connected with the display module, the interface module, the storage module, the key module, the alarm module, the ultrasonic generation circuit, an A/D conversion module and a microprocessor separately; the ultrasonic generation circuit is also connected with the probe; the probe is also connected with a to-be-detected workpiece and an ultrasonic receiving circuit separately; and the ultrasonic receiving circuit is also connected to the A/D conversion module through an amplifier circuit, a clamping circuit and the filter in sequence. By adopting a structural and modular design, the electronic detection device is diverse in function, real-time collection and transmission of data can be achieved, and meanwhile, a very faint ultrasonic signal can be absorbed, so that the detection precision is improved.