Method for transmitting continuous data and data transmission system

A method for transmitting continuous data includes sensing a continuous touch trace on a touch device, generating touch data of the continuous touch trace according to the sensing time, a transmission terminal generating the data with starting point format and the data with stroke format according to the touch data, and the transmission terminal transmitting the data with starting point format and the data with stroke format to a receiving terminal. The data with starting point format includes a first initial tag, an initial coordination information, and a first termination tag, and the initial coordination information includes a horizontal coordinate and a vertical coordinate. The data with stroke format includes a second initial coordination information, a plurality of offset data, a total number of the offset data, and a second termination tag, and each offset data includes a horizontal offset value corresponding to a previous horizontal coordinate and a vertical offset value corresponding to a previous ve