To provide a double-faced adhesive tape wherein a part of an adhesive piece peels and warps up by feeding or drawing operation of a substrate so that the adhesive pieces can be held and stuck one by one by hand or the like.

In the double-faced adhesive tape comprising an adhesive layer 1, a support layer composed of paper or nonwoven fabric containing an adhesive, and an adhesive layer 2 identical to or different from the adhesive layer, which are successively lamianted on a substrate subjected to double-faced peeling treatment, a partitioning slit or space is provided to partition the laminated product of the tape to adhesive pieces which can be taken one by one, and the thickness ratio (r) of the adhesive-containing support layer represented by r (%)=[t/(t+t1+t2)]100 (t: thickness of the adhesive-containing support layer, t1: thickness of the adhesive layer 1, and t2: thickness of the adhesive layer 2) is 40% or more.