Green and freshly felled poles have been treated by a simple method and cheap chemicals. The equipment can be located very close to the site of felling and the treatment can be carried out by semi-skilled workmen. An experiment was carried out with this method on five indigenous wood species namely: garjan (Dipterocarpns turbinatus), kao (Garcenia cowa), jam (Syzygiuni grande), kalibatna (Qnercus fenestrata) and rai batna (Quercus thonisoni) with 10% copper sulphate solution at the felling site of Chunati Forest Range, Chittagong. Analysis of the Results on the penetration and the retention of the preservative inside the pole indicates that the entire portion of the sap wood around the pole was completely penetrated and the required retention was obtained.