Conductive polymer composites （CPCs） with positive temperature coefficient （PTC） have many applications in self-regulating heating fields.However，current researches on CPCs are mainly concentrated in the high temperature region，and few reports are concerned on low temperature segment.This study proposed a method of making a low Curie temperature point PTC material with water-based acrylic resin as matrix，and discussed the effects of temperature-controlled materials and different proportions of conductive fillers on Curie temperature.By adding Ni powder into the copolymer of water-borne acrylic resin and organic acid crystal，the PTC materials with low initial resistance and a Curie temperature point near the melting point of organic acid crystal were obtained.The Curie temperature point of the material can be adjusted within a certain range by regulating the proportion of Ni powder.Results show that，when the mass fraction of Ni powder is 30%，the initial resistivity of the material can reach 1.96Ω·cm，and the PTC intensity can exceed 6.Heating test results show that the heating capacity and electrical properties of the materials have no significant change after the thermal cycle，indicating good repeatability.