The invention discloses a data transmission progress displaying method and system. The method comprises steps that an electronic device acquires data transmission progress of an open system via the open system; the electronic device works in a safety system; the open system operates in a backgrounder of the electronic device; the data transmission progress can be broadcast in the open system; the progress of the safety system registered in open system receives the data transmission progress broadcast by the open system; and the safety system displays the data transmission progress. By the use of the method or system, data transmission progress in the open system can be displayed in the safety system; user operation can be simplified; and electronic device energy consumption can be reduced and user experience can be enhanced.