This study examines the effect of project-based learning on children’s social-emotional development and children’s fine motoric development. This study uses a Quasi-Experimental Design. Control-Group Design (Pre-test and Post Test) or Nonequivalent [Pretest and Post Test] Control-Group Design, the experimental group (A) and the control group (B), were selected without a random assignment procedure. In these two groups, both pretest and posttest were carried out. Only the experimental group (A) was treated. This research was conducted at RA Uniform Debit and RA Kusuma Mulia, Ngino, Plemahan, Kediri. Data were collected using observation sheets, descriptive statistical data analysis, and paired t-test with alpha <0.05.  Based on the results of different tests with the Paired t-test, the Sig. As much as 0.000, where this value is less than 0.05, reject H1 and accept H0, there are differences in social-emotional development and fine motor skills between before (pretest) and after (posttest) getting project-based learning the experimental group and the control group. The average value shows that the social-emotional development after being given the Project-Based learning was more significant than the social-emotional development, namely 26.03> 20.44 in the experimental group and 22.10> 20.23 in the control group. Likewise, fine motor development before being given the Project-Based learning, namely 14.97> 11.84 in the experimental group and 13.03> 11.97 in the control group. This means that the project-based learning given to RA students in Plemahan, Kediri is more effective than learning in the control group.