The invention discloses a preparation method of an easy-to-unfold hand-throwing net. The preparation method comprises the following operation steps that (1) a molded hand-throwing net through preparation is put into a soaking solution with 55-60 DEG C of temperature and soaked for 2-3 hours; (2) after the soaked hand-throwing net is dried, a modified liquid is sprayed on the surface of the hand-throwing net; (3) lastly, the hand-throwing net is dried, then placed in the environment of 2-5 DEG C to be stored for 8-10 hours, and then taken out to obtain a finished product. The preparation methodof the easy-to-unfold hand-throwing net has the advantages that the process is simple, the cost is low, the mechanical properties of the prepared hand-throwing net are excellent, in particular, the elasticity is good, the softness is high, unfolding is easy, and the use difficulty of the hand-throwing net is further reduced.