TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The solvent used by the high-performance polyarylether resin is methylene dichloride, trichloromethane, dichloroethane, tetrachloroethane, pyridine (Py), metacresol, N-methylpyrrolidone (NMP), N,N-dimethylformamide (DMF), N,N-dimethyl acetamide (DMAc), tetrahydrofuran (THF), acetone, methanol, ethanol, isopropanol, commonly used solvents, and mixed solvents. The solvent used by the universal engineering resin is styrene, methyl methacrylate, methylene dichloride, trichloromethane, dichloroethane, tetrachloroethane, Py, metacresol, NMP, DMF, DMAc, THF, acetone, methanol, ethanol, isopropanol, commonly used solvents, and mixed solvents.    TECHNOLOGY FOCUS - POLYMERS - Preferred Component: The high-performance polyarylether resin is a new series of polyarylether sulfone ketone resins including poly(phthalazinone ether sulfone ketone) (PPESK) in which sulfone (S)/ketone (K) is adjustable and equals 0, poly(phthalazinone ether ketone) (PPEK) in which S/K is infinite, poly(phthalazinone ether sulfone) (PPES), phenolphthalein poly (ether ether ketone) (PEK-C), and phenolphthalein poly(ether ether sulfone) (PES-C) resin. The universal engineering resin is polymethylmethacrylate (PMMA), polystyrene (PS), polyvinylidene fluoride (PVDF), PVDF-hexafluoropropylene (HFP) copolymer, polyacrylonitrile (PAN), nylon, polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP) or polyvinyl chloride (PVC) universal engineering resin.    TECHNOLOGY FOCUS - TEXTILES AND PAPER - Preferred Method: The high-performance polyarylether unwoven cloth is prepared by separately dissolving the high-performance polyarylether resin and the universal engineering resin in the respective solvents to form a stable solution system, where the consistency of the solution is 5-10 wt.% (or a molten state universal engineering resin); separately packing the high-performance polyarylether resin and the universal engineering resin solutions (or the melt) into different injection pumps of electro-spinning devices, where the solutions in the injection pumps are connected to one pole of a high-voltage power supply through a lead; arranging a metal plate, a metal mesh or a metal roller electrode which are connected to the other pole of the high-voltage power supply at the other side that is 5-50 cm away from the injection pumps, as a collector; and setting up the voltage of the power supply. Under the action of a high-voltage electric field, the spinning solution (or the melt) is ejected from nozzles of the respective injection pumps to form jet flows. The jet flows are entangled due to whipping generated in the movement process and are finally collected on the metal collector in the unwoven cloth to prepare a high-performance polyarylether unwoven cloth.