The invention discloses a novel solar heat pipe heat collecting and storing floor radiation heating system, comprising an outdoor flat plate solar heat collector, a fixing device and an indoor floor radiation cooling device; the outdoor solar flat plate heat collector comprises a heat pipe group with fins, a heat collecting plate, a honeycomb interlayer, a metal frame outer box body, a transparent glass cover plate and a heat preservation material; the heat pipe group, the heat collecting plate and the honeycomb interlayer are arranged in the metal frame outer box body; the transparent glass cover plate is positioned at the upper part of the metal frame outer box body; the heat preservation material is filled in the inside wall of the metal frame outer box body; the indoor floor radiation cooling device comprises an underground cooling header and an indoor heat pipe group which are connected to each other; a heat conduction material and a phase change material are filled in the underground cooling header; the evaporation section of the heat pipe group with the fins is positioned in the metal frame outer box body; the condensation section of the heat pipe group with the fins is positioned in the underground cooling header. The system does not need any power system, is energy-saving and environment-friendly and can be used as assisting heating equipment and main heating equipment.