The invention discloses an automatic silk reeling machine headstock brushing end cocoon feeding device and a control technology thereof. The cocoon feeding device comprises a brushing-picking end cocoon without end cooling mechanism arranged on an end picking pot (10) and a mixed cocoon conveying mechanism connected with the brushing-picking end cocoon without end cooling mechanism, the output side of the mixed cocoon conveying mechanism is arranged on a high-temperature cocoon feeding opening of an end brushing pot (2), and a water flow system cooperates with the end picking pot (10) and thebrushing-picking end cocoon without end cooling mechanism; the control technology comprises the following steps that 1) the brushing-picking end cocoon without end cooling mechanism cools brushing-picking end cocoons without ends in the end picking pot (10); 2) the mixed cocoon conveying mechanism mixes the cooled brushing-picking end cocoons without ends and reeling silk dropping end cocoons andconveys the cooled brushing-picking end cocoons without ends and the reeling silk dropping end cocoons to the end brushing pot (2) for end brushing; 3) new cocoons are supplemented to the end brushingpot (2); the cooled brushing-picking end cocoons without ends in the end picking pot and the reeling silk dropping end cocoons are mixed and added in the end brushing pot, and therefore the stabilityof the brushing end cocoon setting quantity is improved, and the temperature fluctuation is reduced.