The present invention relates to a device and method for coding a 3D video, and a decoding method according to the present invention comprises the steps of: decoding information on an intra-skip mode for a current block; deriving, as the intra-skip mode, a prediction mode of the current block on the basis of the information on the intra-skip mode; generating a candidate list for the intra-skip mode; and generating a reconstruction sample of the current block on the basis of the candidate list. The present invention can reduce the amount of data to be transmitted and improve coding efficiency by coding a current block on the basis of an intra-skip mode in 3D video coding. In addition, the present invention can perform an intra-skip mode procedure on the basis of an intra-directional mode using a neighboring block in 3D video coding, and reconstruct the current block without a residual signal.