The utility model relates to a building-block-assembled cabin toy which comprises a plurality of building blocks. The building blocks comprise trusses, chimneys, signboard supporting seats, roof plates, signboards and support columns, wherein the support columns comprise first support columns, second support columns, third support columns, fourth support columns and fifth support columns; the support columns are provided with grooves and are connected with one another through the grooves; the support columns and the trusses are used to support the roof plates; the chimneys are disposed on the roof plates; and the signboard supporting seats are used to support the signboards. The beneficial effects of the building-block-assembled cabin toy are that the toy is unique in design, and can be repeatedly assembled and disassembled, thereby bringing interest to children, excising the hand and brain interaction ability and imaginal thinking ability of the children, and enhancing abilities of the children to cooperate and communicate with others. Moreover, the assembled cabin can be collected as a piece of artware and used for household decoration.