A pulse hydraulic fracturing tool of coiled tubing dragging with bottom packer includes a pulse frequency regulating device and liquid jetting device connected to each other. The pulse frequency regulating device has a rotor, a rotating member, a fixed member and a stator. An eccentric setting is arranged between the stator and the rotor. A part of a first fluid provided by the coiled tubing flows into the jet cavity through the channel in the rotor, and drives the rotor to rotate with another part of the first fluid, such that a first passing region is formed between the rotating member and the fixed member in a predetermined pulse frequency. The another part of the first fluid flows into the jet cavity through the first passing region. The nozzle ejects two parts of the first fluid mixed in the jet cavity out.