Abstract: By constructing a game model between owners and contractors in the bidding of construction projects in the coal industry, this paper analyzes the optimal strategy combination of both parties by using the classic copy dynamic equation of the evolutionary game, and discusses the bidding strategy of the contractor in the case of information asymmetry; Through the explicit factor of advance schedule, the contractor cost type is reflected, so that the owner can distinguish the cost type of the contractor under the condition of information asymmetry, and the incentive contract applicable to the contractor of different cost types is designed to enable the owner to achieve the purpose of preferring the contractor.By designing incentive contracts for contractors of different cost types, the owner is enabled to achieve the purpose of preferring the contractor. The research shows that the balanced strategy of both parties is a low construction cost contractor and a normal quotation. The low construction cost contractor will hide his private information for bidding; by setting a reasonable incentive contract, the contractor will indicate the type of cost and make the best effort. It can maximize the benefits of both itself and the owner at the same time.