The invention discloses a preparation method of fruit and vegetable type dietary fiber composite meal replacement powder, and belongs to the technical field of food. According to the method, greengage flesh and lemon slices are used as raw materials; the greengage flesh is denucleated, is pickled by honey sweet water, is then repeatedly steamed and boiled, and is dried in the air for standby; next, the lemon slices are soaked in honey, and is put into a glass bottle to be pickled; the lemon slices and the greengage flesh are diced; eggs and corn starch are added; stirring and kneading are performed for making the materials into a dough; extrusion granulation is performed; the product together with obtained materials, vitamin meal, mineral substance and vegetable diet fiber is poured into a three-dimensional mixer to be mixed; the mixture is sieved and charged into bags to obtain the fruit and vegetable type dietary fiber composite meal replacement powder. The instance proves that the fruit and vegetable type dietary fiber composite meal replacement powder has the advantages that the mouthfeel is exquisite; the satiety can be improved, so that people cannot generate malnutrition in the process of weight reduction through meal replacement powder eating and cannot have the symptom of metabolism reduction due to weight reduction.