Manufacturing method of micro light-emitting element array, transfer carrier, and micro light-emitting element array

A manufacturing method of micro light-emitting element array includes the following steps. Provide a transfer substrate and metal pads disposed on the transfer substrate. Provide a growth substrate and micro light-emitting elements disposed on the growth substrate in an array. Heat the metal pad to a heating temperature and melt the metal pad to connect the metal pad and electrodes of the micro light emitting elements. Remove the growth substrate. A transfer carrier includes the transfer substrate and the plurality of metal pads which are disposed on the transfer substrate. The plurality of metal pads are separated by isolation space. A micro light-emitting element array includes the above mentioned transfer carrier and the plurality of micro light-emitting elements. Each of the micro light-emitting elements has an electrode. The electrodes of the micro light-emitting elements are connected and fixed to the transfer substrate by the metal pads.