Activated carbon fibre  /  filament (ACF)  has  been prepared  from different  cellulonic precursors    by chemical   activation  method,   using zinc   chloride   and   phosphoric   acid   as   activating agents.   It has  been found  that adsorptivity capacity  of zinc chloride  activated  ACF  produces  was  better than phosphoric acid  activated ions.  It has also been  inferred that all  ACF  products   have   microporous   structure  having   absence   of meso  and   macropores.   An   ACF  product   of  reasonable  activity  and  having good  strength characteristics  may  be   prepared  by  zinc chloride activation of bleached cotton cloth.