Disclosed is a photocurable resin composition that is alkali-developable, provides a cured product having excellent adhesiveness and scratch resistance, and is useful as a hard-coat material for an image display surface of an image display device. Also disclosed is a novel siloxane compound that is useful as a resin component of the aforementioned photocurable resin composition. Specifically, the invention provides: a photocurable resin composition including (A) a polyol acrylate compound, (B) a compound including, in the molecule thereof, an acrylic or methacrylic group and a carboxyl group, (C) a siloxane compound represented by one of the general formulae (1) to (4), and (D) a photoradical generating agent; and a novel siloxane compound represented by the general formula (4). The specific contents of the general formulae (1) to (4) are as described in the Description.
