NOVELTY - A silicon nano-line array dispersing method involves cleaning silicon substrate using acetone, alcohol and cleaning solution comprising hydrogen peroxide and sulfuric acid by ultrasonic oscillation. The substrate is heated to clean the silicon substrate. The cleaned substrate is transferred in a high pressure reaction kettle, followed by sealing oven, diluting hydrogen fluoride-silver nitrate corrosion solution with de-ionized water in a container to obtain mixed solution. The mixed solution is filled in a kettle in the oven.    USE - Method for dispersing silicon nano-line array for use in solar cell field.    ADVANTAGE - The method enables dispersing silicon nano-line array with better quality in a simple and inexpensive manner.    DETAILED DESCRIPTION - A silicon nano-line array dispersing method involves cleaning silicon substrate using acetone, alcohol and cleaning solution comprising hydrogen peroxide and sulfuric acid at a ratio of 1:3 by ultrasonic oscillation. The substrate is heated for 2-20 minutes to clean the silicon substrate. The cleaned substrate is transferred in a high pressure reaction kettle, followed by sealing oven, diluting hydrogen fluoride-silver nitrate corrosion solution with de-ionized water in a container to obtain mixed solution. The mixed solution is filled in a kettle in the oven at 30-80 degrees C for 30 minutes, taking out silicon sheet from the reaction kettle, followed by covering sample surface with a layer of silver metal coated surface of loose material. The resultant sample is washed with water. The washed sample is heated with aqua regia of hydrochloric acid and nitric acid at a ratio of 3:1 to remove metal-coated material and silver particle in the sample. The resultant sample is washed with de-ionized water and clean solution of 10% hydrogen fluoride for 1-60 seconds to remove natural oxide, using de-ionized water to wash, and drying using nitrogen. The sample is soaked in 10 wt.% sodium hydroxide and 10 wt.% isopropyl alcohol mixed alkaline solution for 10-90 seconds, using beam-shaped nano-wire array. The resultant sample is dispersed and dried using nitrogen after optical properties and surface morphology analysis, where the concentration of the hydrogen fluoride-silver nitrate in the hydrogen fluoride-silver nitrate corrosion solution is 0.01-10 mol/l.