In order to improve the compatibility of the laser induced breakdown spectroscop y (LIBS) instrument for different types of components and optimize parameters and test process of LIBS,an automatic and modularized measur ement and control system of LIBS is developed.According to the characteristics of the LIBS instrument compo nents,we summarize the characteristics of the control parameters,integrate the multiple electrical inte rfaces and develop the instruction library of control component.The testing results show that the control system can be compa tible with most types of LIBS components on the market,which enhances the flexibility and compatibility of th e LIBS instrument to different components.The core components,such as spectrometer and laser,have been tested to compatible with three different types of components at least.In addition,the efficiency of parameter s optimization process is improved by designing multi-layer iterative testing procedures.In the optimiza tion test of delay time,the optimal scope of delay time is 1.28－18.28μs and the step values are 1μs,0.5μs,0.2μs,0.1μs.Compared with the manual testing platform,the testing efficiencies are improved by 2.81times,3.15times, 3.72times,4.15times,respectively.