The invention discloses a preparation method for coal refuse powder padding polyolefine complex material. The method is that at first maleic anhydride graft polyolefine is dissolved by a hydrocarbon solvent to prepare a surface treatment agent and then the maleic anhydride graft polyolefine treatment agent is added into dried coal refuse powder according to weight ratio of 2 to 10:100, and then stirring and mixing with high speed are carried out, then plasticized polyolefine is added according to weight ratio of 10 to 80:100, then mixing under high temperature for 5 to 15 minutes is further carried out and then the temperature is reduced to room temperature and particle slicing is then carried out. Since maleic anhydride graft polyolefine surface treatment agent used by the invention is amphotericity giant molecules with responsivity, dispersed state of the coal refuse powder in the complex materials can be effectively improved and adjusted, thus improving interface combining ability, thus keeping relatively large adding amount of the coal refuse powder, meanwhile keeping fine processing performance and comprehensive pressure performance of the complex materials thereof. The preparation method for coal refuse powder padding polyolefine complex material has the advantages of simple technology, convenient operation and low energy consumption.