Blacklist sharing method, blacklist updating method, blacklist sharing device and blacklist updating device

The invention relates to the field of man-machine interaction and provides a blacklist sharing method, a blacklist updating method, a blacklist sharing device and a blacklist updating device, which is used for solving the technical problem that updating on blacklists is not timely enough in the prior art. The blacklist sharing method is applied to first electronic equipment, and comprises the following steps: after communication content sent by a first communication number is received, judging whether the first communication number is added to a first blacklist of the first electronic equipment; when the first communication number is determined to be added to the first blacklist, sharing first communication number information which corresponds to the first communication number so as to enable second electronic equipment to update a second blacklist of the second electronic equipment according to the first communication number information. The effect that the blacklists can be updated in time is achieved.