The utility model discloses a portable indoor monitoring device which comprises an information acquiring end that is mounted at indoor space or outdoor space for monitoring a surrounding environment, and an information receiving end which is placed at indoor space for acquiring monitoring information. The information acquiring end comprises the components of a first data transceiver, a first 3.3V DC power supply, an image sensor which is connected with the first data transceiver, a first image storage unit, a first voice input module, a first voice output module, and a first wireless transceiver which is in wireless communication with the information receiving end. The information receiving end comprises the components of a second wireless transceiver which is in wireless communication with the information acquiring end, a second data transceiver, a second 3.3V DC power supply, a second image storage unit which is connected with the second data transceiver, a liquid crystal display module, a second voice input module and a second voice output module. The portable indoor monitoring device has the advantages of high safety, high portability, small restriction by geographical conditions, easy and flexible mounting construction, effective data storage function, complete functions and high practicability.