The present invention provides a portable lead ECG measuring system for measuring a myoelectric signal of a user's body. The portable lead ECG measuring system comprises a lead unit and a measuring unit. The lead unit includes a first connection port, a first guiding line, a second guiding line, a first contact member and a second contact member. The first port has a signal terminal and a power terminal. The first contact member connects the first connecting port and the first contact member to a position of the user's body through the first guiding line, and the second contact member connects the first connecting port and the second contact through the second guiding line The piece grips another part of the user's body. The myoelectric signal is transmitted to the first connection port through the first contact member and the second contact member. The measuring unit receives the myoelectric signal and selectively processes the myoelectric signal.本創作係提供一種可攜式導程心電測量系統，供測量一使用者之身體的一肌電訊號，可攜式導程心電測量系統包含一導程單元與一測量單元。導程單元包含一第一連接埠、一第一導引線、一第二導引線、一第一接觸件與一第二接觸件。其中，第一連接埠具有一電訊號端子與一電源端子。第一接觸件透過第一導引線連接第一連接埠和第一接觸件夾持使用者之身體的一處，以及第二接觸件透過第二導引線連接第一連接埠和第二接觸件夾持使用者之身體的另一處。其中，肌電訊號供透過第一接觸件與第二接觸件傳送至第一連接埠。測量單元接收肌電訊號與選擇性處理肌電訊號。
