Parenting implies mutual care of the mother and father for the child; a number of activities, responsibilities and behavioural patterns. Many factors affect the parents' motivation, such as biological, socioeconomic, the quality of the partnership, social circumstances and the norms of the individual adopted in the family and wider social environment. Parenting style is the behaviour that a parent applies in relation to a child. The purpose of this research is to establish and examine whether the motivation for parenthood is connected to the parenting styles. There were three questionnaires used in the survey: Socio-demographic data questionnaire, Parental motivation questionnaire and Child rearing styles questionnaire. The research was conducted via 'Google forms' and it included 150 parents of different age groups. Altruistic motivation is the most common motivation for parenthood among data subjects and parenting style is authoritative. Regarding the motivation for parenthood, differences were found according to the sex, age, number of children and family structure. Men are more likely using instrumental motivation to assert themselves, preserve marriage stability and patriotic motivation than women. Parents between the ages of 21 and 30 score higher on the narcissistic motivation scale than parents over the age of 40. Parents with three children describe significantly higher fatalistic motivation than parents with one child. Parents from extended families describe self-affirmation and lineage extension more often than parents from two-generation families. Single parents more often describe authoritarian parenting styles than parents from whole two-generation or three-generation families. Authoritative parenting style is most strongly associated with altruistic motivation. The highest correlations of authoritarian child rearing style are with self-affirmation, narcissistic and fatalistic motivation. The highest correlations of the permissive child rearing style are with the fatalistic motivation, then with the narcissistic, self-affirmation and extension of the parentage. Only the authoritative parenting style is not significantly associated with patriotic motivation.