In order to meet the requirements of laser induced plasma analysis system (LIPS), the spectral resolution, spectral range and volume of the optical system. In this paper, the echelle spectrograph is developed. The spectrometer can simultaneously obtain spectral information in all spectral segments, which enables the LIPS system to perform fast, online and real-time analysis. Also, the spectrometer uses an adjustable delay time ICCD as the back end detector. The system can select the optimal delay time to receive the spectrum and improve the signal-to-noise ratio of the whole system. Finally, a set of laser induced plasma analysis system is built to verify the applicability of the echelle spectrometer in the system. By testing the alloy sample, the resolution of the whole system is 002 nm, and the spectrum range is 190～600 nm. Moreover, the LIPS system has good spectral reproducibility, and the extraction error of the characteristic element wavelength is no more than 001 nm, which can be used to analyze the composition of the sample accurately.