With the development of communication technology and cloud computing technology, the front-end obtains data and uploads it to the cloud for analysis, and then transmits the cloud analysis results back to the front-end for display APP design and audio mode are gradually popularized in life. Drawing on its ideas, a JS+Python test signal analysis cloud platform design technology is proposed. Among them, the web-based JS front-end page program is responsible for signal acquisition and analysis result display, while the Python program running on the cloud server is responsible for cloud computing and analysis of uploading data. Run the test experiment platform. After the data and script are uploaded, the server can successfully receive and call the corresponding test technology and control theory algorithm in the script to process the data, and return it to the browser to visualize the results.This minimizes the hardware and software requirements of the front-end equipment, and facilitates the realization of the equipment operation fault monitoring and diagnosis network composed of front-end measurement device+back-end test signal analysis cloud platform.