Refracturing method by naturally selecting dessert temporary blocking size for horizontal well

The invention discloses a refracturing method by naturally selecting dessert temporary blocking size for a horizontal well. The refracturing method comprises the steps that a well with certain geologic reserves is selected, and geological dessert areas of the whole horizontal well which needs to be subjected to refracturing are ruled again; a new rock mechanics crack initiation order is predicted;the dessert area with rich accumulation of oil and gas and with the best physical property is found, and a first fracture is pressed to be open; the first fracture is blocked through a temporary blocking agent, fracturing liquid is pumped into continuously, the pressure rises, the dessert area of the secondary grade is selected, and a second fracture is pressed to be open; multiple fractures of athird fracture, a fourth fracture and the like are sequentially pressed to be open, and fracturing of the multiple fractures with naturally selected desserts in a segment is realized; and meanwhile,the powder-like high-streng