We have measured satellite line for n=2-1 dielectronic recombination(DR) on He-like Argon.The Experiment was carried out on Shanghai EBIT and the x-ray emission spectra due to KLL, KLM, KLN, KLO, KMM, KMN, KNN DR and n=1-2 electron-impact excition of He-like Argon was recorded by.using a flat crystal spectrometer and a HpGe Detector.These satellite lines are very important for further studying the laser plasmas.The resonance strength at each specific resonance energy was analyzed.