To provide a joint filler for a tile solving the point at issue of a conventional epoxy resin joint filler and having an excellent flexibility.

The joint filler for the tile contains a binder component mainly comprising an epoxy resin. In the joint filler for the tile, an alicyclic epoxy resin or the mixture of the alicyclic epoxy resin and an aromatic epoxy resin is used as the epoxy resin. The flexibility is improved by containing the alicyclic epoxy resin. The flexibility can further be enhanced by compounding a reactive diluent.