A detachable combined toy top, comprising: a main top, which comprises a top cap, a main top piece, a top axle sleeve and a top tip; and a subsidiary top, which comprises a subsidiary top piece, an axle sleeve structure and a top tip, an elastic structure being provided on the upper portion of the subsidiary top, the main top being actively connected to the upper portion of the subsidiary top, and by means of the elastic structure, the main top being detachable from the subsidiary top and ejected out when being obstructed during rotation, such that the two tops can spin on themselves separately, the elastic structure being a spring base, wherein there is a moveable connection between the main top and the subsidiary top which is realized by the connection of the main top piece and the subsidiary top piece, each of which is provided with adapting pieces that can be movable connected; wherein the main top and the subsidiary top are combined into one by pushing the main top onto the subsidiary top and compressing downwardly the spring base until the main top piece and subsidiary top piece are fitted and connected together, and characterised in that the subsidiary top piece is designed to be a torus, and the adapting pieces of the subsidiary top piece are upper holders provided at the upper edge of the inner ring of the subsidiary top, and the adapting pieces of the main top piece are designed to be coupling lower holders for cooperating with the upper holders; the main top piece and subsidiary top piece are combined into one top, which can be separated by turning, by stacking the main top piece onto the subsidiary top, staggering the lower holders and the upper holders while pressing, and then turning the main top piece so that the lower holders are snapped onto the upper holders. a main top, which comprises a top cap, a main top piece, a top axle sleeve and a top tip; and a subsidiary top, which comprises a subsidiary top piece, an axle sleeve structure and a top tip, an elastic structure being provided on the upper portion of the subsidiary top, the main top being actively connected to the upper portion of the subsidiary top, and by means of the elastic structure, the main top being detachable from the subsidiary top and ejected out when being obstructed during rotation, such that the two tops can spin on themselves separately, the elastic structure being a spring base, wherein there is a moveable connection between the main top and the subsidiary top which is realized by the connection of the main top piece and the subsidiary top piece, each of which is provided with adapting pieces that can be movable connected; wherein the main top and the subsidiary top are combined into one by pushing the main top onto the subsidiary top and compressing downwardly the spring base until the main top piece and subsidiary top piece are fitted and connected together, and characterised in that the subsidiary top piece is designed to be a torus, and the adapting pieces of the subsidiary top piece are upper holders provided at the upper edge of the inner ring of the subsidiary top, and the adapting pieces of the main top piece are designed to be coupling lower holders for cooperating with the upper holders; the main top piece and subsidiary top piece are combined into one top, which can be separated by turning, by stacking the main top piece onto the subsidiary top, staggering the lower holders and the upper holders while pressing, and then turning the main top piece so that the lower holders are snapped onto the upper holders.