The invention discloses a photovoltaic power generation accommodating capacity calculation method taking static voltage stability into consideration in the field of power system photovoltaic power generation planning. The technical scheme includes that the method includes determining calculation conditions; analyzing light intensity data of a planned photovoltaic power station site area, acquiring a probability density function of photovoltaic array output power of the area, and determining actual capacity of a photovoltaic power station; building a probability optimal power flow model based on a chance-constrained planning theory; taking a Jacobian matrix minimum eigenvalue as an index measuring the static voltage stability of a system and as a part of an inequality constraint condition to be led into the probability optimal power flow model; utilizing an intelligent optimization algorithm to solve the optimal power flow model to acquire photovoltaic power generation accommodating capacity. By the method, photovoltaic capacity randomness can be taken into consideration, solar direct radiation, reflection, scattering radiation and temperature data are not needed, and the model is concise and accurate; more reasonability in result is realized by leading in a static voltage stability allowance index.