The utility model provides a high level fixing device and the high level knapsack of fleing of fleing belongs to the high level instrument technical field that flees. The high level fixing device thatflees is used for setting up the mounting on high -rise building including flexonics spare and at least two, and every mounting has the installation department that is used for setting up the hasp, all sets up flexonics spare on every installation department. This high level is fleed the hasp of knapsack and is hung on the installation department of fixing device's a mounting is fleed to the highlevel, uses the high level to flee in the knapsack the user, and when one of them mounting drop from high -rise building, remaining mounting can play corresponding fixed action, improved the safety in utilization of the high -rise knapsack of fleing.