Co-firing biomass power generation in power plants is one of the feasible and realistic ways to make full use of biomass energyresources with near-zero carbon emissions in the context of dual carbon targets. Nowadyas, there are few demonstration projects of co-firing biomass power generation in power plants. The technical maturity needs to be improved. There are problems such as fuel crushing andtransportation, combustion organization, and boiler heating surface corrosion. Computational Fluid Dynamics (CFD) provides an effectiveresearch method for the optimal design and operation of energy and power plants. The research status of the gas-solid two-phase dynamic model of biomass particles was mainly reviewed. The existing problems were summarized, and the research suggestions were proposed.Biomass particles are large and exhibit irregular non-spherical. In the absence of mature technology and relevant experience in China, theaccurate simulation of the motion trajectory of irregular and large for non-spherical biomass particles is the basis and key to accurately simulate the combustion process, which is also a difficulty in this field. However, there is no general model of gas-solid two-phase dynamicsfor large non-spherical biomass particles under dilute phase flow conditions. It is suggested to strengthen the basic theoretical research onthe gas-solid two-phase dynamic model for efficient combustion of biomass particles. A new correlation of drag-lift coefficient and moment coefficient of various typical non-spherical particles is obtained by particle-resolved direct numerical simulation(DNS), which couples the translational and rotational motion of non-spherical particles. A general gas-solid two-phase dynamic model for large non-spherical biomass particles is constructed. After further experimental verification, it is applied to multiphase flow simulation in industry, whichprovides support for revealing the particle transport and thermal conversion characteristics in the coupling process of co-firing biomasspower generation in power plants.