Protective casing capable of remote measurement of object dimension

The utility model discloses a protective casing capable of remote measurement of an object dimension. The protective casing includes a housing. An infrared laser head is arranged on the housing. One end of the housing is provided with an opening. A movable protective cover is connected with the opening. The inner side of the movable protective cover is provided with a USB interface which is used for butt joint with a USB interface of a mobile phone. The USB interface is connected with the infrared laser head through a data line. The protective casing capable of the remote measurement of the object dimension improves a protective casing of an electronic device. The infrared laser head is added on the housing and the infrared laser head is enabled to be connected with the mobile phone so that the mobile phone is used to supply power to the infrared laser head and data transmission is realized. Therefore, the protective casing capable of the remote measurement of the object dimension realizes remote distance measurement through the infrared laser head after being connected with a device. The protective casing capable of the remote measurement of the object dimension can be used for remote measurement under a condition that precision demands are not high so that occurrence of dangers can be reduced when dangerous animals or objects are measured. Measurement data can be obtained in a real-time manner through electronic devices such as mobile phones and tablet computers and the like.