A research on incentive method of investment linkage based on the perspective of quantum game

•We explore the incentive policy of investment and loan linkage based on the perspective of quantum game.•We build the quantum game model of investment and loan linkage.•We analyze the advantages of quantum game.•The entanglement of the players will affect the payoff of the game. In the investment linkage, there are differences in risk preference and interest distribution between the investment institutions that provide investment and commercial banks that provide venture loan. Therefore, there are differences between the two sides in the strategic choice of whether to carry out investment and loan linkage. Currently, investment linkage has not been effectively promoted in China. Quantum game expands the strategy set and introduces the concept of entanglement. This paper aims to provide policy suggestions for effectively encouraging the third-party investment institutions and commercial banks to carry out investment and loan linkage through this new game perspective.