Berdasarkan hasil observasi awal diketahui bahwa kemampuan motorik halus anak masih belum berkembang secara optimal, sehingga perlu upaya peningkatan kemampuan motorik halus salah satunya dengan memberikan kegiatan finger painting dengan tujuan untuk mengetahui peningkatan kemampuan motorik halus anak pada kelompok B di TK Negeri Pembina Surabaya. Penelitian ini menggunakan pendekatan penelitian kuantitatif dengan rancangan penelitian quasi eksperimental design dengan jenis nonequivalent control group design. Subjek penelitian berjumlah 30 anak. Teknik pengumpulan data menggunakan observasi, wawancara dan dokumentasi. Teknik analisis data menggunakan uji non parametik menggunakan Mann Whitney U Test dan dengan bantuan menggunakan teknik analisis data SPSS 25. Untuk menentukan kesimpulan dari pengujian hipotesis yakni dengan memperhatikan dasar pengambilan keputusan uji Mann whitney U Test  hal ini nilai signifikansi atau Asymp. Sig (2 tailed) < dari probabilitas 0,05 maka hipotesis atau H_a diterima dan H_o ditolak. Sebaliknya jika nilai signifikansi atau Asymp. Sig (2 tailed) > dari probabilitas 0,05 maka hipotesis atau H_a ditolak dan H_o diterima. Berdasarkan hasil penelitian data tentang motorik halus Dari data hasil uji Uji Mann Whitney U Test dapat diperoleh kesimpulan bahwa nilai Asymp. Sig. (2 tailed) yaitu sebesar 0,014. Dasar pengambilan keputusan uji Mann Whitney U Test yakni apabila nilai Asymp. Sig < 0,05 maka hipotesis atau H_a  diterima. Dari perolehan hasil uji Mann Whitney U Test tersebut dapat disimpulkan bahwa nilai Asymp. Sig 0,014 < 0,05 maka sesuai dengan dasar pengambilan keputusan uji Mann Whitney U Test dapat disimpulkan bahwa H_o ditolak dan H_a diterima. Sehingga, hasil penelitian dapat disimpulkan bahwa kegiatan finger painting berpengaruh terhadap kemampuan motorik halus pada anak kelompok B di TK Negeri Pembina Surabaya

Based on the results of preliminary observations, it is known that the fine motoric abilities of children are still not optimally developed, so one need to improve fine motor skills is by providing finger painting activities in order to determine the improvement in children's fine motor skills in group B at Surabaya State Kindergarten. This study uses a quantitative research approach with a quasi experimental design with a type of nonequivalent control group design. The research subjects were 30 children. The technique of collecting data uses observation, interviews and documentation. The data analysis technique used the non-parametric test using the Mann Whitney U Test and with the help of using SPSS 25 data analysis techniques. To determine the conclusions of testing hypotheses, namely by paying attention to the basis of the Whitney U Test Mann decision test this is a significance value or Asymp. Sig (2 tailed) <from the probability of 0.05 then the hypothesis or Ha is accepted and Ho is rejected. Otherwise if the value is significant or Asymp. Sig (2 tailed)> of the probability of 0.05 then the hypothesis or Ha is rejected and Ho is accepted. Based on the results of research on fine motor data From the data from the Mann Whitney U Test test results can be concluded that the value of Asymp. Sig. (2 tailed) which is equal to 0.014. The basis for decision making in the Mann Whitney U Test is if the value of Asymp. Sig <0.05 then the hypothesis or Ha is accepted. From the acquisition of the Mann Whitney U Test, it can be concluded that the value of Asymp. Sig 0.014 <0.05 then according to the basis of the decision making Mann Whitney U Test can be concluded that Ho is rejected and Ha is accepted. Thus, the results of the study can be concluded that the finger painting activity has an effect on fine motor skills in group B children in the Surabaya Kindergarten of the Builder

Keywords: fine motor, finger painting and group B