The crude lipid contents in meat, skin and viscera of eel were 24.94, 20.00 and $14.96\%$, respectively, and higher than the other fresh water fishes. The free lipid was consisted in order of neutral lipid($86.71{sim}94.94\%$), phospholipid($4.13{sim}12.74\%$) and glycolipid($0.63{sim}1.22\%$), and the bound lipid in order of phospholipid($51.74{sim}75.21\%$), neutral lipid($14.41{sim}36.82\%$) and glycolipid($5.12{sim}7.51\%$). The neutral lipid in free lipid was mainly consisted of TG($68.51{sim}95.22\%$), and that in bound lipid TG($36.54{sim}39.94\%$), ES & HC($17.20{sim}18.01\%$), and MG($15.81{sim}18.11\%$). The phospholipid in free lipid was mainly consisted of PC ($32.40{sim}56.08\%$) and PE($18.71{sim}31.09\%$), while that in bound lipid PC ($42.51{sim}67.90\%$) and PS ($23.37{sim}34.49\%$). The contents of major fatty acid of polar lipid in free and bound lipids were $C_{16:0}(16.58\%,;14.10\%),;C_{18:0}(12.44\%,;7.36\%),;C_{18:1}(16.01\%,;15.78\%),;C_{20:4}(10.01\%,;6.11\%);C_{20:5}(4.20\%,;8.67\%);and;C_{22:6}(10.26\%,;18.32\%)$ and those of nonpolar lipid in free and bound lipids were $C_{16:0}(22.31\%,;18.61\%),;C_{18:0}(4.36\%,;5.69\%),;C_{18:1}(36.30\%,;27.20\%);C_{20:5}(2.88\%,;2.38\%);C_{22:5}(6.38\%,;5.11\%);and;C_{22:6}(1.20\%,;5.11\%)$. The total essential fatty acid(TEFA) content of polar lipid in meat was ranged from 17.33 to $22.88\%$, and $2.0{sim}3.0$ times higher than that of nonpolar lipid, and the TEFA content of bound lipid in meat was ranged from 11.54 to $22.88\%$, and $1.5{sim}2.0$ times higher than that of free lipid. The w3 highly unsaturated fatty acid(w3-HUFA) content of polar lipid in meat was ranged from 8.63 to $42.85\%$, and higer than 11.48 to $14.42\%$ of nonpolar lipid. Also the w3-HUFA content of bound lipid in meat was ranged from 13.35 to $42.85\%$, and higher than 11.48 to $18.63\%$ of free lipid. The w3-HUFA content in meat was higher than that in skin and/or viscera