The modular progressive distributor is composed of a first piece, a tail piece, and 3-10 working valve pieces. The working valve piece is designed as a module and consists of a bottom plate valve block and a working valve block. The distributor plunger is inside the working valve block, and the oil outlet is on both sides of the bottom plate valve block. The modular distributor has better versatility, convenient disassembly, maintenance, and adjustment of the working valve block, and no need to modify the system pipeline. The valve blocks are sealed with built-in sealing rings, suitable for high pressure and wide temperature changes. The distributor can be equipped with a cycle indicator to monitor the working status of the distributor. Modular distributors are divided into DMA and DMB types based on their displacement, with multiple displacement specifications meeting various working conditions.