A method for adjusting a scanning status, used to perform scanning around a target object to obtain a key frame of the target object, wherein the key frame is used to construct a 3D image of the target object; and the method comprises: determining a reference scan parameter corresponding to a preset target type, when the target object is of the preset target type; obtaining a real-time scan parameter used when the mobile terminal performs scanning around the target object; determining whether the real-time scan parameter conforms to the reference scan parameter; and generating a prompt message if the real-time scan parameter does not conform to the reference scan parameter, wherein the prompt message is used to prompt a user to adjust a scanning status corresponding to a current scan parameter; characterized in that, if the preset target type is a portrait, the determining a reference scan parameter corresponding to the preset target type comprises: obtaining a preset scanning speed corresponding to the portrait to use the preset scanning speed as the reference scan parameter; the obtaining a real-time scan parameter used when the mobile terminal performs scanning around the target object comprises: obtaining a real-time scanning speed used when the mobile terminal scans the target object, wherein the real-time scanning speed is a real-time moving speed of the mobile terminal during a process during which the mobile terminal performs scanning around the portrait; and the generating a prompt message if the real-time scan parameter does not conform to the reference scan parameter, wherein the prompt message is used to prompt a user to adjust a scanning status corresponding to a current scan parameter comprises: generating a prompt message if the real-time scanning speed is greater than the preset scanning speed, wherein the prompt message is used to prompt the user to reduce the moving speed of the mobile terminal. determining a reference scan parameter corresponding to a preset target type, when the target object is of the preset target type; obtaining a real-time scan parameter used when the mobile terminal performs scanning around the target object; determining whether the real-time scan parameter conforms to the reference scan parameter; and generating a prompt message if the real-time scan parameter does not conform to the reference scan parameter, wherein the prompt message is used to prompt a user to adjust a scanning status corresponding to a current scan parameter; characterized in that, if the preset target type is a portrait, the determining a reference scan parameter corresponding to the preset target type comprises: obtaining a preset scanning speed corresponding to the portrait to use the preset scanning speed as the reference scan parameter; the obtaining a real-time scan parameter used when the mobile terminal performs scanning around the target object comprises: obtaining a real-time scanning speed used when the mobile terminal scans the target object, wherein the real-time scanning speed is a real-time moving speed of the mobile terminal during a process during which the mobile terminal performs scanning around the portrait; and the generating a prompt message if the real-time scan parameter does not conform to the reference scan parameter, wherein the prompt message is used to prompt a user to adjust a scanning status corresponding to a current scan parameter comprises: generating a prompt message if the real-time scanning speed is greater than the preset scanning speed, wherein the prompt message is used to prompt the user to reduce the moving speed of the mobile terminal. obtaining a preset scanning speed corresponding to the portrait to use the preset scanning speed as the reference scan parameter; the obtaining a real-time scan parameter used when the mobile terminal performs scanning around the target object comprises: obtaining a real-time scanning speed used when the mobile terminal scans the target object, wherein the real-time scanning speed is a real-time moving speed of the mobile terminal during a process during which the mobile terminal performs scanning around the portrait; and the generating a prompt message if the real-time scan parameter does not conform to the reference scan parameter, wherein the prompt message is used to prompt a user to adjust a scanning status corresponding to a current scan parameter comprises: generating a prompt message if the real-time scanning speed is greater than the preset scanning speed, wherein the prompt message is used to prompt the user to reduce the moving speed of the mobile terminal. obtaining a real-time scanning speed used when the mobile terminal scans the target object, wherein the real-time scanning speed is a real-time moving speed of the mobile terminal during a process during which the mobile terminal performs scanning around the portrait; and the generating a prompt message if the real-time scan parameter does not conform to the reference scan parameter, wherein the prompt message is used to prompt a user to adjust a scanning status corresponding to a current scan parameter comprises: generating a prompt message if the real-time scanning speed is greater than the preset scanning speed, wherein the prompt message is used to prompt the user to reduce the moving speed of the mobile terminal.