Synthetic method of novel tackifying resin

The invention relates to a synthetic method of a novel tackifying resin. By adopting the synthetic method, phenolic hydroxyl is partially or completely removed; and a new substituent group with larger steric effect is led in, so as to synthesize the novel tackifying resin with a brand-new structure. The resin has better water-resisting property than p-tert-Butylphenol formaldehyde resin, octyl phenolic resin, modified alkyl phenolic resin, tertiary phenol acetylene resin, rosin modified phenolic resin, petroleum resin, terpene resin and the like, can prevent tearing, and can be widely applied to the industries such as plastic, paint, and adhesive, and has better economic benefit and market prospect.