Abstract: There are Various tests for inproving properties of the wood of PinusMassoniama Lamb mainly in chemistry mode, through which the principal defectof the Pinus has not been entirely overcome yet. Having been radiated, the pinus get a deeper colour, with more beautifulchord plane, less moistur, more organic solvent, freeradical increased. It is veryeasy to take the fat out of the pinus. However no obviously changes/can befound in its structure, fibe form and mechanics properties, and relative crystalli-nity. This will bring us a new way for inprovement and use of the pinus.