Provided is an anti-sloshing conical flask water bath system. The system includes a water bath kettle body, a water bath kettle cover, a fixing block, first magnets and second magnets, wherein a clamping mechanism is installed in the water bath kettle body, each clamping unit includes a spring and a clamping block, one end of each spring is connected with the inner sidewall of the water bath kettle body, and the other end of each spring is connected with one corresponding clamping block; the upper part of the side wall, opposite to one corresponding spring, of each clamping block is arranged as an inclined plane, an arc-shaped groove is formed in the lower part of the side wall, opposite to one corresponding spring, of each clamping block, and a conical through hole is formed in the middleof the fixing block; the first magnets are installed on four sidewalls of the fixing block, and the second magnets are installed on the inner sidewall of the water bath kettle body or the sidewall ofa sieve. According to the anti-sloshing conical flask water bath system, through the arrangement of the clamping mechanism, fixing block, first magnets and second magnets, the three-dimensional movement of a conical flask in the water bath kettle body is limited effectively, and the problem that a failure of an experiment is caused by spilling of reagent liquid in the conical flask due to shakingor falling down, which is caused by the buoyancy and fluctuation of water in the water bath kettle body, of the conical flask during the experiment is solved.