We　analyzed　how　entrepreneurial　team　processes　affect　business　performance,　and　the　mediating　effect　of　social　capital　in　youth　small　business　ventures　in　Taiwan.　Participants　were　predominantly　young　entrepreneurs　between　20　and　40　years　of　age　in　Taiwan　venture　industries.　Empirical　analysis　results　showed　that　the　entrepreneurial　team　had　a　significant　positive　impact　on　social　capital　and　business　performance.　However,　social　capital　was　not　a　mediator　between　team　management　and　firm　performance.　Practical　implications　are　that　when　an　entrepreneurial　team　is　in　a　state　of　high　cohesion　and　communicates　well,　more　social　capital　will　be　captured　for　the　improvement　of　business　performance.　©　2020　Scientific　Journal　Publishers　Limited.　All　Rights　Reserved.