The invention discloses a power transaction settlement risk management and control method. The method can be well suitable for the settlement risk management area in the power market, and the settlement risk of market members can be effectively controlled by supervising the links of market admission, the settlement process, credit guarantee submission and the like of the market members. The powertransaction settlement risk management and control method comprises the following steps of (1) determining the initial admission qualification of market members; (2) determining a market member list needing to submit credit guarantee; (3) setting credit standards of market members in a settlement process; (4) determining settlement risks of the new market members and the inactive market members; (5) determining settlement risks of existing market members; and (6) supervising the settlement risk and credit standard of the market members. According to the present invention, the contract fulfillment rate of the electric power transaction center can be improved, good and ordered transaction of various electric power products in the electric power market can be guaranteed, and the fairness andnormalization of market operation can be further maintained.