The article covers the research of connection between mental, sensor and motor development, sensorimotor, ideomotor and emotional-motor reactions and also their variations by preschoolers with mild case of pseudobulbar dysarthria. The aim of the research is in theoretical study of specification of psychosensorimotor development of preschoolers with mild case of pseudobulbar dysarthria. Novelty of the research is in substantiation of the theoretical importance of studying psychosensorimotor development and also in definition of abnormalities' variations in psychosensorimotor development of preschoolers with mild case of pseudobulbar dysarthria. To achieve the set goals we've analized psychoeducational, medical and logopedic publications which proved that this category of children has later formation of all the motor functions, precision of the motions is disrupted, arbitrary motility of fingers and hands suffers, articulatory muscles' tone is high as a rule, vocal breath is in retarted development, temporythmical disruption of oral speech is evident. There is imprecision in spatial-optical gnosis in psychological development. One of the peculiarities of the emotional-motor reactions is heightened emotional excitability of the nervous system, motor anxiety, dormancy, timidity, irritation, troubles with activity arrangement. Shown data confirm the complex structure of the fault in case of pseudobulbar dysarthria and the importance of studying psychosensorimotor development in this cathegory of children. Derived results could be used by speech therapists by planning the system of correction and development.