A frame transmission method of an electronic device, wherein the frame transmission method includes the steps of: receiving a pause frame from another electronic device, wherein the pause frame includes a plurality of packet size ranges and corresponding pause times; referring to content of the pause frame, and determining a first frame interval according to which packet size range a first packet to be sent to the other electronic device belongs to; and after a first frame including the first packet is sent to said another electronic device, at least waiting for the first frame interval before starting to send a second frame to said another electronic device.