The utility model discloses a high security electric power metering device draws line knot to be constructed, including the measurement body, the lower extreme bilateral symmetry of measurement body is equipped with the stabilizer blade, and the pottery draws line block's bottom and is connected with the upper end of backup pad, and the bottom both sides of backup pad draw line block through the fix with screw pottery that runs through the setting, the bottom symmetry of backup pad sets up the pillar, and the lateral wall lower extreme symmetry of inverted -hook -shaped board sets up down the pillar, first fixed axle cup joints the upper end of first connecting rod, and the second fixed axle cup joints the lower extreme of second connecting rod, the inboard middle part through spring coupling second connecting rod in middle part of first connecting rod, the utility model discloses rational in infrastructure, functional strong, to a great extent has improved and has drawn the security that line knot constructs, avoids the tradition to draw line knot and constructs that to have the security poor, has the problem of potential safety hazard easily, and the utility model discloses simple to use, convenient operation has very strong practicality, has extensive market perspective.