The invention provides a domestic sunflower seed cracker, and relates to a sunflower seed cracker. The invention aims at solving the problem that the existing domestic sunflower seed cracker is low inefficiency and the manual cracking easily causes injuries to the human bodies. According to the technical scheme, sunflower seeds are poured into a feeding hole and conveyed to a separating device through the conveying of a conveying device, the sunflower seed separating is then carried out, the separated sunflower seeds slide out from sunflower seed slideways, each sunflower seed slideway corresponds to a squeezing hole of one squeezing cracking mechanism, then the squeezing for the separated sunflower seeds is realized, and then the separation of sunflower seed pulp from sunflower seed shells is realized. The domestic sunflower seed cracker is suitable for sunflower seed cracking.