The invention relates to a power point tracking circuit for collaborative acquisition of multiple energy sources. The power point tracking circuit comprises a boosting power level circuit and a firstpower point tracking circuit. The first input end of the boosting power level circuit is connected with the output end of the first energy source. The second input terminal of the boosting power levelcircuit is connected with the output terminal of the second energy source. The boosting power level circuit is used for interspersing and combining the working cycles of the first energy source and the second energy source to alternately obtain the input energy of the first energy source and the second energy source. The first power point tracking circuit is connected with the boosting power level circuit and is used for controlling the output power point of the boosting power level circuit so that the boosting power level circuit outputs energy at the first power point. The circuit adopts aboosting power level circuit which can combine the working cycles of different energy sources by using the idle time of discontinuous conduction mode, thus realizing simultaneous working of various energy sources without interference to each other.