The utility model discloses a multi -functional life saving equipment of thread guide formula. It is including the control and the display terminal that have a data processing module, the little submarine that has no. Two data processing module, hoist engine and data processing center, the display module, a calling module, control module is connected with a data processing module simultaneously, power and control system, the camera, no. Two calling module, the arm, inflatable lifesaving floatoblast is connected with no. Two data processing module simultaneously, data processing center is connected with a data processing module and no. Two data processing module respectively, the information transmission end of hoist engine is connected with data processing center, hawser and little submarine of hoist engine are connected. After adopting foretell structure, realized distance, complicated waters, the all -weather lifesaving work on water of in a particular case far away, very big improvement success rate and drowning personnel's the survival rate of lifesaving on water.