A calibration apparatus for an in-vehicle camera, comprising: a body, a plurality of distinctive marks arranged at intervals along a first direction and a plurality of heating members arranged at intervals along a second direction being disposed on the body, wherein the plurality of distinctive marks is configured to be recognized by a common camera, and the plurality of heating members is configured to generate heat so as to be recognized by an infrared camera; wherein the body comprises: a housing and a covering plate covered on the housing, the covering plate and the housing forming an accommodating cavity after being connected, wherein the plurality of distinctive marks is disposed on an external surface, away from the accommodating cavity, of the covering plate; the plurality of heating members is fixed in the accommodating cavity; a plurality of through holes arranged along the second direction is formed on the covering plate; each through hole of the plurality of through holes corresponds to one heating member of the plurality of heating members, and each heating member of the plurality of heating members corresponds to one through hole of the plurality of through holes; and heat of a heating member of the plurality of heating members is sent out through a through hole corresponding to the heating member; wherein, one or more distinctive marks of the plurality of distinctive marks is disposed between two through holes of the plurality of through holes, or one or more through holes of the plurality of through holes is disposed between two distinctive marks; characterized in that the body further comprises a fixing base; the fixing base is accommodated in the accommodating cavity, the fixing base being provided with a connecting portion and a mounting portion; and the mounting portion is configured to connect the plurality of heating members, and the connecting portion is configured to connect the mounting portion and the body; wherein the mounting portion comprises a groove configured to accommodate the plurality of heating members. a body, a plurality of distinctive marks arranged at intervals along a first direction and a plurality of heating members arranged at intervals along a second direction being disposed on the body, wherein the plurality of distinctive marks is configured to be recognized by a common camera, and the plurality of heating members is configured to generate heat so as to be recognized by an infrared camera; wherein the body comprises: a housing and a covering plate covered on the housing, the covering plate and the housing forming an accommodating cavity after being connected, wherein the plurality of distinctive marks is disposed on an external surface, away from the accommodating cavity, of the covering plate; the plurality of heating members is fixed in the accommodating cavity; a plurality of through holes arranged along the second direction is formed on the covering plate; each through hole of the plurality of through holes corresponds to one heating member of the plurality of heating members, and each heating member of the plurality of heating members corresponds to one through hole of the plurality of through holes; and heat of a heating member of the plurality of heating members is sent out through a through hole corresponding to the heating member; wherein, one or more distinctive marks of the plurality of distinctive marks is disposed between two through holes of the plurality of through holes, or one or more through holes of the plurality of through holes is disposed between two distinctive marks; characterized in that the body further comprises a fixing base; the fixing base is accommodated in the accommodating cavity, the fixing base being provided with a connecting portion and a mounting portion; and the mounting portion is configured to connect the plurality of heating members, and the connecting portion is configured to connect the mounting portion and the body; wherein the mounting portion comprises a groove configured to accommodate the plurality of heating members. a housing and a covering plate covered on the housing, the covering plate and the housing forming an accommodating cavity after being connected, wherein the plurality of distinctive marks is disposed on an external surface, away from the accommodating cavity, of the covering plate; the plurality of heating members is fixed in the accommodating cavity; a plurality of through holes arranged along the second direction is formed on the covering plate; each through hole of the plurality of through holes corresponds to one heating member of the plurality of heating members, and each heating member of the plurality of heating members corresponds to one through hole of the plurality of through holes; and heat of a heating member of the plurality of heating members is sent out through a through hole corresponding to the heating member; wherein, one or more distinctive marks of the plurality of distinctive marks is disposed between two through holes of the plurality of through holes, or one or more through holes of the plurality of through holes is disposed between two distinctive marks; characterized in that the body further comprises a fixing base; the fixing base is accommodated in the accommodating cavity, the fixing base being provided with a connecting portion and a mounting portion; and the mounting portion is configured to connect the plurality of heating members, and the connecting portion is configured to connect the mounting portion and the body; wherein the mounting portion comprises a groove configured to accommodate the plurality of heating members.