PURPOSE: A method for manufacturing a hardness reinforced charcoal which can be fabricated into accessories so that charcoal useful to the human body contacts the body and is used in water purification, a charcoal soot inhibiting and abrasion resisting coal and a method for manufacturing the same are provided. CONSTITUTION: The method for manufacturing a hardness reinforced charcoal comprises a first step(S10) of preparing wood; a second step(S20) of heating the wood in the temperature range of 600 to 800 deg.C after putting the wood into a closed kiln; a third step(S30) of heating an internal temperature of the kiln in the temperature range of 1000 to 1300 deg.C by partially opening the kiln after a certain period of time, thereby supplying air into the kiln; a fourth step(S40) of cutting a resulting material of the third step; a fifth step(S50) of processing the resulting material of the fourth step into a shape selected from a ring shape, a polygonal plate shape, a polygonal cylinder shape and a pyramid shape; a sixth step(S60) of cleaning the resulting material in boiling water so as to discharge charcoal powder from charcoal pores after cleaning the resulting material until generation of charcoal powder is inhibited from the resulting material of the fifth step; and a seventh step(S70) of drying the resulting material of the sixth step.