An assembling type sports instrument comprises a hollow column and a plurality of assembly parts. The hollow column includes an outer surface on the outer circumference thereof, an inner surface on the inner circumference thereof, and a plurality of column through-holes each penetrating the outer surface and the inner surface. Each assembly part includes a massage member and a connection member connected with the massage member. Each massage member comprises a construction at one end, which is far away from the connection member. Each connection member can be detachably connected with one of the column through-holes. While one assembly part is connected with the column through-hole, the construction thereof protrudes from the outer surface.