The invention discloses a compound early strength agent for cold-recycling of emulsified asphalt. The compound early strength agent for cold-recycling of emulsified asphalt is prepared from, by mass, 5-20% of an inorganic salt type early strength agent body, 2-10% of an organic early strength agent body, 10-30% of a dispersing agent, 5-15% of demulsifier, 0.1-1% of retarder and 35-65% of water. According to the complex early strength agent, early strength improvement of a cold recycled mixture of emulsified asphalt is accelerated in two directions of acceleration of hydration of cement and promotion of demulsification of asphalt, the improvement extent can reach 1-3 times, the construction progress can be greatly accelerated, and it is beneficial to apply and popularize a cold-recycling technology emulsified asphalt; raw materials are chemical accessories commonly used in engineering, extremely easy to obtain and moderate in price, a compounding technology is simple, and large-scale production and application can be met; the long-term strength, volume index and water stability of the prepared cold recycled mixture of emulsified asphalt are greatly improved.