The invention relates to an active surface myoelectricity detection probe adopting optical fiber transmission. The active surface myoelectricity detection probe adopting optical fiber transmission comprises a power source transformation and management module. The active surface myoelectricity detection probe adopting optical fiber transmission is characterized by further comprising an active probe body, wherein the active probe body comprises a reference electrode, a measuring electrode and a system control center, the system control center selects the measuring electrode and the reference electrode as a measuring pair in a time sharing mode through a single-chip microcomputer, the potential difference of the measuring pair is fed into a differential amplification circuit through an electronic simulation switch so that amplification and filtering can be carried out, and the detection probe transmits collected data to an upper computer through optical fibers in a one-way mode. The active surface myoelectricity detection probe adopting optical fiber transmission can solve the problems in the prior art, coupling interference on electrode wires and data transmission lines can be lowered effectively, the problem of 50 Hz power frequency interference entering from a power supply power line in a coupling mode can be solved, and therefore the needs of practical situations are met.