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The yield of tar and syngas has been investigated by catalytic pyrolysis of Pingzhuang lignite (PZL) over Ca(OH)2 catalyst in temperature range of 600 ℃–1000 ℃ in a tube face. The results show that the yield of volatile py-rolysis increases and char decreases with rising temperature for both raw and catalyzed Pingzhuang lignite. The hydrogen fraction (H2) increased from 20％to 40％for the PZL sample;but, for the PZL-Ca(OH)2 sample, H2 frac-tion fluctuated randomly between 35％to 42％, with the maximum H2 fraction found at 1000 ℃. The Gas-chromatography mass-spectroscopic (GC–MS) analysis revealed that the maximum tar yield at 800 ℃ and 700 ℃ was obtained for PZL and PZL-Ca(OH)2, respectively. The surface morphology of PZL and PZL-Ca(OH)2 chars underwent different transformation in the presence of catalyst as illustrated by SEM/EDX, FTIR, and BET analysis. Furthermore, char sample was investigated for the carbon conversion and reactivity index using TGA analysis under N2 and CO atmosphere.