Abstract: This article describes trie computer system of spin-echo spectrometer, which consists mainlc of TP-801 computer, peripheral devices, interface circuits and a set of applied software The system can produce various pulse sequences, which meet the requirement of spin-echo experiments, including 90-90,90-180, 180-90 and carr-purcell pulse sequences etc. At the same time, the computer system acquires FID and spin-echo signals and processes data collected. The results can be shown directly on oscilloscope and plotter, and also can be stored in tape. Relaxation time T₁ and T₂ can be measured fast and accurately. It also can be used in teaching of NMR spin-echo. In the last part of this article, results of measurement of a group of samples are given. The computer system described by this article is also fit to combine with general CW-NMR spectrometer to enable it to have function of spin-echo measurement.