The utility model belongs to the power engineering field, and especially relates to an adjustable cable hoop comprising two hoop plates arranged in opposite; one end of the hoop plate is symmetrically provided with a mounting plate positioned outside a connecting portion of the two hoop plates; the mounting plate is provided with a support; the support is transversely provided with a rotary shaft having a ratchet wheel; a ratchet paw, an active swing rod and a check ratchet paw are respectively arranged corresponding to the ratchet wheel; one end of the active swing rod is connected with the rotary shaft, and the other end of the active swing rod is arranged on a connecting rack through the rotary shaft; the connecting rack is arranged on the support; the ratchet paw is hinged to the active swing rod through the rotary shaft; the check ratchet paw is hinged to the mounting plate; a reed is arranged between the check ratchet paw and the mounting plate; one end of the rotary shaft is provided with a handle. The adjustable cable poop is compact and reasonable in structure, can adjust the tightness of the cable, and improves erecting equality and efficiency; the ratchet mechanism is arranged so as to conveniently adjust and position the positioned cable; the adjustable cable hoop is low in cost and convenient in operation.