Passion fruit hydroponic seedling raising method

The invention discloses a passion fruit hydroponic seedling raising method which comprises the following steps: S1, soaking and disinfecting devices for seedling raising, including a floating cutting fixing block and a cultivation box; cutting slips are sheared, cuts of the cutting slips are at least disinfected, and the cutting slips are aired after disinfection; s2, a floating type cutting slip fixing block capable of floating or being fixed on water is taken, the floating type cutting slip fixing block is provided with at least one clamping structure, the cutting slips are pressed into the clamping structures and placed into a cultivation box, the temperature of a water culture solution is controlled to be 18-25 DEG C, the air humidity is controlled to be 70-80%, and a proper amount of root system growing points grow out when the cutting slips are inserted into the water. According to the method, rooting of passion fruit cutting slips can be rapidly promoted, and seedling breeding of passion fruits is acce