The invention discloses a non-woven composite with tear resistance and a preparation method of the non-woven composite. The preparation method comprises the steps as follows: weighing N-N dimethylformamide and acetone as a solvent; weighing polyvinylidene fluoride-hexafluoropropylene as a solute, and adding the solute to the solvent to prepare a spinning solution with concentration being 8wt%-10wt%; weighing and adding silicon dioxide accounting for 0.25wt%-1.5wt% of polyvinylidene fluoride-hexafluoropropylene by mass to the prepared spinning solution; placing the mixed solution in a magnetic stirrer for stirring, and then performing ultrasonic vibration dispersion; performing spinning on a polyester melt-blown nonwoven fabric with an electrospinning technology and preparing the non-woven composite with the tear resistance. According to the non-woven composite with the tear resistance and the preparation method, the most suitable ratio of raw materials and preparation conditions are provided, and the tear resistance of the non-woven composite is improved with the electrospinning technology; the non-woven composite and the preparation method have the advantages of being simple in structure, convenient to operate, simple to control and short in technological process.