The invention relates to a stainless steel dental handpiece comprising a handle and a head connected with the same. The handle is composed of a handle housing, a water line, a gas line, and a plug, wherein the water line and the gas line are arranged inside the handle and the plug is disposed at the rear end of the handle. The head is composed of a head housing and a core. The head housing is made of stainless steel undergone thermolizing. The stainless steel dental handpiece has the advantages of high strength, long service life, rarity of deformation, light head weight, good corrosion resistance, comfort of touch and the like.