The invention discloses a television sales area information querying method and device. The television sales area information querying method comprises the steps that first television parameters sent by television terminals are received, and whether television information of the television terminals is tampered or not is judged according to the first television parameters and preset data; if the television information is tampered, second television parameters sent by the outside are obtained, wherein the second television parameters include a first part identifier of at least one television terminal; according to the first part identifiers, whether data items matched with the first part identifiers exist in the preset data or not is judged; if the data items matched with the first part identifiers exist in the preset data, sales area information corresponding to televisions is determined according to the data items. In the mode, the costs of third-party illegal persons maliciously tampering television parameters are improved, and the sales area information of original televisions can be rapidly and conveniently checked reversely.