Data transfer method and system thereof

A data transmission method according to an embodiment of the present invention comprises the steps of: selecting at least one data displayed on a first touch screen of a first electronic device; generating information that corresponds to each of the at least one data by the first electronic device; transmitting the information by the first electronic device to a data transmission object; storing the information transmitted by the data transmission object; and transmitting the information by the data transmission object to a second electronic device, wherein the information includes at least one session ID regarding a selected sequence of the at least one data and a device ID referring the first electronic device. [Reference numerals] (100) First electronic device; (200) Second electronic device; (300) Data transmission object; (S110) Select data; (S120) Generate information of data; (S122) Data capture trigger; (S130) Transmit the information; (S140) Store the information; (S142) Data transmission trigger; (S144) Request to transmit the information; (S150) Transmit the information; (S160) Request to transmit the data; (S170) Transmit the data