The invention discloses a mobile microenvironment adjusting device for an airport gallery bridge berth area. The device comprises a working cabin, a fence assembly, a guide mechanism, a high-power air conditioner and an air guide pipe. The device has the advantages that a push-pull/traction mode is adopted, on the basis of severe consideration of the working environment of the airport gallery bridge berth area at present, convenience and rapidness are achieved, and the considerable environment comfort degree adjusting effect can be achieved. Most parts can be completely accommodated in the working cabin, are stored in a specified storage area of a gallery bridge berth area and are convenient to move; the power load is supplied by the gallery bridge, and the soft curtain enclosure is convenient to fold and unfold, so that the maintenance time of the gallery bridge berth aircraft is not prolonged for a long time. The device is completely made of non-metal materials and is light in weight, and a soft connecting mode is adopted at the connecting position, so that accidental unbalance cannot cause damage to an airplane body and personnel. The adopted soft curtain enclosure has the characteristics of transparency and fog prevention, does not block the sight, and does not influence the work of the original guaranteed vehicle in the airplane gallery bridge berth area, so that the safety and the practicability are relatively high.