Two groups of zircons were collected from plagioclase-amphibolite in Jianyang County，northern Fujian. The rock belongs to the Mayuan Group which was formed in Early Proterozoic and is a part of the Zhejiang-Fujian stable crystalline basement. The U-Pb isotopic age of single zircon grains from the first group (No. M-y) is 2300 Ma士and that from the second group (No. M-b) is 40U Ma土. Their mineralogical data show that there exist notable differences between the two groups of zircons: 1. Zircons of No. M-y group exhibit euhedral growth zoning and long columnar crystal form，similar to features of magmatogenic zircons，whereas zircons of No. M-b group display equant rounded crystal form，have no euhedral growth zoning but show rounded crystal nuclei in their crystals，which is similar to features of metamorphogenic zircons. 2. Chemical composition zoning:from core to rim in a No. M-y zircon crystal，the ZrO2/HfO2 ratio decreases and the content of HfO2 increases gradually，which is coincident with features of the magmatogenic zircons reported by Bao Xuezhao (1995);nevertheless，in No.M一b group zircon crystals，the ZrO2/HfO2 ratio increases and the content of Hf0 decreases gradually，similar to features of the metamorphogenic zircon reported by Bao Xuezhao (1995). 3. Raman spectra of zircons:background level is higher in the Raman spectra of No. M-y but lower in the Raman spectra of No. M一b (a feature of metamorphogenic zircons that crystallized under medium to low grade metamorphism)，suggesting that No. M-y group zircons have higher impurities of fluorescent radiation than No. M-b group zircons.It is further proved that No. M-y group zircons crystallized in magma of higher temperatures and No. M一b group zircons crystallized during metamorphism of lower temperatures. Moreover，there exists reverse evolution trend in Raman peak intensity from the center to the edge of a crystal，which may he attributed to the reverse chemical composition zoning.