The invention discloses a cross-type key, a game handle and a remote controller. The cross-type key comprises a key cap and a key support, wherein the key support comprises four column bodies distributed symmetrically in a cross type, and the bottom parts of the four column bodies are respectively corresponding to positions of key elements for controlling upper, lower, left and right directions at the key mounting plate; the key cap is a cross-type shell matched with the key support in shape; the key cap is provided with a first magnetic connector, and the corresponding position on the key support is provided with a second magnetic connector; the key cap is buckled on the key support, and is in pull-in connection through the magnetic force between the first magnetic connector and the second magnetic connector. When the key is replaced or disassembled, the magnetic force only needs to be overcome to take off the key cap, the operation is simple and convenient, no special knowledge is needed, the product inner structure is not damaged, key caps with different colors, different hardness and different hand feelings can be replaced, and use by users of different needs and preferences is met.